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How to Explain Crohn's Fatigue to People

Stop describing the feeling and describe the cost, the recovery time and the score. What works when people say I'm tired too, and what the evidence supports.

Clairop Team37 min read

Photo: Joe Holland / Unsplash

The short answer

Descriptions of how fatigue feels invite comparison, because healthy people are tired too and the average scores sit close together. What is not close is duration and recovery: chronic fatigue was reported by 29% of people with Crohn's against 11% of a reference population. Lead with cost, recovery time and a scored questionnaire instead of adjectives.

The single most useful change you can make is to stop describing how the fatigue feels and start describing what it costs, how long it lasts and how long you need to recover. Descriptions of a feeling invite comparison, and comparison is the one argument you cannot win, because healthy people are genuinely tired and the average fatigue scores of the two groups sit closer together than you would expect. Duration and recovery time are different: that gap is large, it is measured, and it is the part of your experience that nobody with a normal week actually shares.

Why "tired" fails as a word, and why that is not your fault

The word collapses two different things and there is no agreed replacement, including in the research literature. When Czuber-Dochan and colleagues reviewed 28 studies of IBD fatigue, they found investigators using "fatigue", "low energy", "tiredness", "decline in vitality and vigour" and "reduced energy and vitality" for what was supposed to be the same thing, with different underlying definitions, and they noted that none of the reviewed studies had asked patients to describe the experience in their own words (Czuber-Dochan 2013). If the specialists studying this symptom could not settle on a term, the fact that you cannot land it at a family dinner is not a personal communication failure.

There is also a real conceptual distinction underneath the confusion. Sleepiness and fatigue are related but separate phenomena, and the sleep medicine literature has argued for decades that merging them under the lay word "tired" hides differences that matter for both diagnosis and treatment: sleepiness involves a presumed impairment of the normal arousal mechanism, while fatigue does not, and no gold standard for measuring fatigue objectively exists (Shen 2006). So when you say "tired" and the other person hears "sleepy", they are not being obtuse. They are hearing the most common meaning of the word you used.

This is exactly the frustration that runs through the Crohn's threads. In one r/CrohnsDisease thread about people responding with "I'm tired too", a commenter argued that chronic illness fatigue needs its own dedicated word that cannot be hijacked, and another described having stopped using the word at all, because they had learned to read the response as evidence that the listener had understood something entirely different. When a whole community independently arrives at "we need a different word", that is a vocabulary problem rather than a persuasion problem.

The practical implication is small and immediate. Pick a phrase that does not contain the word tired, and use the same one every time so that it acquires a specific meaning with the people who know you. Crohn's and Colitis UK's own survey of people living with these conditions collected the phrases patients reach for instead, including brain fog, completely wiped out, just shattered, zombie mode and bone weary (Crohn's & Colitis UK 2025). None of those is more scientific than "tired". All of them are harder to answer with "same here".

The argument you cannot win: whose tiredness is worse

Here is the uncomfortable number. In a Norwegian study of 140 people with IBD, mean total fatigue scores were 14.7 in Crohn's disease, 14.4 in ulcerative colitis and 12.2 in a reference population of 2,287 Norwegian citizens (Jelsness-Jørgensen 2011). That is a real difference, and it is also a small one. If the debate is "how tired am I right now, on a scale", the group averages sit close together, and no amount of vivid description will separate them in the mind of someone whose only reference point is their own worst week.

Now look at the other figure from the same study. Chronic fatigue, defined as substantial fatigue lasting more than six months, was reported by 29% of the Crohn's group (14 of 48 people) and 22% of the colitis group (20 of 92) against 11% of the reference population (260 of 2,287). Roughly a tripling in Crohn's. Two caveats worth stating plainly: the Crohn's subgroup was only 48 people, so that 29% carries a wide margin of uncertainty, and the controls came from a separate national reference sample rather than being recruited alongside the patients, so they were not matched individual to individual.

Even so, the shape of the finding is the useful part, and it tells you which conversation to have:

Axis of comparisonWhat the data showHow the conversation goes
How intense it is right nowGroup means of about 14.7 versus 12.2, only about two points apart"I'm tired too", and they are not wrong
How long it lastsSubstantial fatigue beyond six months in 29% versus 11%Hard to match from a normal life
How long recovery takesNot directly quantified here, but the defining feature in every qualitative accountThe clearest daylight between the two experiences
How predictable it isFatigue persisted at 6 months in 88% to 89% of high-fatigue patients in one registryExplains cancellations better than any adjective

There is a second reason to drop the intensity contest, which is that you would lose it against other conditions too. A cross-sectional comparison of 232 people with IBD, 102 with fibromyalgia and 53 healthy controls found the fibromyalgia group had the greatest fatigue interference and the lowest physical activity, with IBD in between and controls lowest (Olive 2020). Ranking suffering is a game with no winners in it.

The Crohn's community has worked this out for itself, and the pushback in the threads is worth reading if you are angry at someone right now. Under the "I'm tired too" post, several of the highest-scoring replies argued that you do not get to rank another person's experience, that people who low-key complain for years sometimes turn out to have an undiagnosed illness of their own, and that pulling the "you should try being me" card damages the relationship you are trying to repair. One reply came from a carer, pointing out that they are exhausted too, just differently. That is not a community policing its own members for being dramatic. It is a community noticing that the competitive frame is the thing that keeps failing.

Four things that land better than an adjective

Answer-first: describe cost, recovery time, unpredictability and the specific thing you need. All four are checkable against what the other person already knows about you, which is what makes them hard to wave away.

Cost. "I can do the shop or cook dinner, not both." Crohn's and Colitis UK suggests writing down what fatigue has actually changed in your life before you try to explain it: whether you have stopped seeing friends, whether you are eating worse because cooking is too much, whether you are forgetting important things, whether you have stopped being intimate with a partner, whether you are missing deadlines (Crohn's & Colitis UK 2025). Those are facts about your life, not claims about your inner state.

Recovery time. "A rest fixes your tired. Mine is still there tomorrow." In the "I'm tired too" thread, the most upvoted version of this was blunt: their tiredness goes after a ten minute break, ours wants to stay for the rest of the day, and the next day as well. This is also the version best supported by the evidence above, which is a nice coincidence and worth using deliberately.

Unpredictability. "I cannot tell you on Tuesday whether Saturday will work." In one registry analysis of 640 people with Crohn's and 569 with ulcerative colitis, high fatigue at enrolment persisted for at least six months in 88% to 89% of those affected (Feagins 2025). Worth knowing whose numbers those are: five of the seven authors were employed by CorEvitas, the commercial registry that supplied the data, and the first author reported research support from Takeda and from CorEvitas. That does not make the persistence figure wrong, but it is a company-run registry rather than an independent cohort.

The specific ask. "Can we move this to lunchtime" or "I would rather have you at mine" is actionable. "Please understand that I am very tired" is not. Crohn's and Colitis UK's community list of what actually helps is almost entirely made of specifics: offer to do a named task rather than asking what is needed, invite us even if we cancelled the last four times, tell us there is no pressure to come, walk slowly with us, do not expect sleep to solve it, do not confuse it with laziness (Crohn's & Colitis UK 2025).

Here is the translation table, using the phrasings people actually reported in the threads:

What you want to sayWhat they hearWhat to say instead
"I'm so tired today""I had a long week too""Yesterday used up today as well"
"You don't understand"An accusation"The part that is hard to picture is that sleep does not fix it"
"I can't come"Rejection"I can do an hour, and I would rather sit down somewhere"
"It's the Crohn's"A label with no content"The inflammation and the meds both drain me, and the tank refills slowly"
"I need to rest"Laziness"If I lie down for 40 minutes now, I get the evening back"

The analogies people actually use, and where each one breaks

Answer-first: battery and fuel analogies work because they make a hard limit intuitive; the flu analogy works because it borrows a feeling the listener already owns; spoon theory works because it converts an argument into a shared vocabulary. All three are metaphors, not mechanisms, and they should not be oversold.

Across the four threads behind this article, the recurring devices were remarkably consistent. The highest-voted comment in a thread of 85 replies described a phone left to charge for two hours that has gained 2% (r/CrohnsDisease). Others described an old rechargeable battery that charges fully and empties fast, a fuel tank with a hole in the bottom, driving hard on the accelerator with the brakes on, gravity increased by a factor of three, permanently being on an antihistamine, and a robot vacuum trying to make it back to its dock. The consistency matters: if dozens of people who have never met reach for the same class of image, it is because that class of image communicates something the word tired does not.

Two of them deserve a note.

The flu analogy. Several commenters explain it as the exhaustion of an activated immune response that never switches off. As a way of borrowing a feeling the listener genuinely has experienced, it is excellent. As a mechanism, it is looser than it sounds, and it is on shakier ground the quieter your disease is: the causes of fatigue with the strongest evidence in quiescent IBD are sleep, mood, iron status, muscle loss and medication rather than measurable ongoing inflammation. If you want the detail on that, it has its own article on persistent fatigue in remission. Use the flu image for what it is good at, which is conveying the quality of the exhaustion, and do not build a medical claim on top of it.

Spoon theory. This is the device the community recommends most, and it appeared as the top reply in the thread that seeded this article (r/CrohnsDisease). It is a personal essay written by Christine Miserandino in 2003, in which a limited daily number of spoons stands for a limited daily energy budget. I could not load the original page while writing this, so I am describing it as the threads describe it rather than quoting it, and I want to be clear that it is a metaphor from a patient writer rather than a piece of research. Two honest limitations came up in the threads themselves: it goes stale if you use it repeatedly with the same person, and one commenter said it made no sense to them before diagnosis, because they had been short of spoons their whole life and had no experience of the other side to compare against.

The general rule from the threads is to pick one analogy and commit to it, so that "I'm at about 10%" becomes shorthand the people close to you can act on without a fresh explanation each time.

Hand over a number: the scales that already exist

Answer-first: the IBD Fatigue Scale, or IBD-F, is a questionnaire built specifically for Crohn's and colitis, and the charity that co-created it explicitly suggests using a completed copy to discuss fatigue with family, friends and employers. A score is not more true than your description, but it is harder to reinterpret.

The IBD-F was developed over five sequential phases involving 567 people with IBD, with the items generated and refined by patients rather than clinicians. It has three sections: five questions on the frequency and severity of fatigue, thirty questions rating its experience and impact, and a free-text section. Initial validation showed acceptable to excellent test-retest stability, with intraclass correlations of 0.74 for section 1 and 0.83 for section 2, and internal consistency above 0.9 (Czuber-Dochan 2014). Later translations held up: the Brazilian version reported internal consistency of 0.95 and reproducibility of 0.97, and estimated a minimal detectable change of 6.0 points, which is the useful number if you want to know whether a change in your score means anything (Lage 2020). The Dutch version reported similar reliability in 133 patients (Stoker 2023).

Disclosure worth making: Crohn's and Colitis UK helped create the IBD-F, and it is Crohn's and Colitis UK's own patient information that recommends taking a completed copy to appointments and using it to discuss fatigue with family, friends and employers (Crohn's & Colitis UK 2025). That is a charity recommending the instrument it helped build. The recommendation still looks sound to me, because the psychometric work is published and independent groups have replicated it, but you should know the relationship exists.

If you want a score whose meaning a stranger can interpret without knowing anything about IBD, there are two other options:

InstrumentWhat it gives youThe catch
IBD-FBuilt for Crohn's and colitis, patient-generated items, 3 sectionsNot calibrated against a general population, so it shows severity and change rather than "how far from normal"
PROMIS FatigueScores anchored to a general-population reference sample, so a high score means high relative to the public, not relative to other patientsNeeds the right short form; the banks were calibrated in a US sample of 21,133 (Cella 2010)
FACIT-FatiguePublished age and sex specific general population norms: mean 43.5, standard deviation 8.3, with higher scores meaning less fatigue (Montan 2018)The norming study's own confirmatory factor analysis fit indices were below desired levels, so treat the norms as a rough yardstick

The Chalder Fatigue Questionnaire is the other scale you may be handed, and it is short, old and widely used, with physical and mental fatigue factors (Chalder 1993). A Rasch analysis in people with inflammatory conditions found both it and a rheumatology fatigue questionnaire reliable but not cleanly unidimensional, which matters for research precision more than for your kitchen-table conversation (Bartholomew 2025).

One more finding is genuinely reassuring if you are worried about picking the wrong questionnaire. When three fatigue scales were posted to 465 people with IBD, all three were highly correlated with each other, and test-retest agreement was reasonable, with intraclass correlations between 0.65 and 0.84 (Norton 2015). In other words, the choice of instrument matters far less than the act of using one consistently. That study also found something you should be ready for: on multivariable analysis, only depression and low quality of life were consistently associated with fatigue across the scales, while IBD diagnosis and age were not. That does not mean your fatigue is depression. It means anyone who looks at the literature can find a mood association in it, so you are better off naming it yourself than being ambushed with it.

Two different failures: not understanding, and not believing

Answer-first: these need different responses. Someone who does not understand needs information. Someone who is discounting you does not, and giving them more information usually makes it worse.

The distinction is not just intuitive, it has been measured. The Illness Invalidation Inventory was developed to capture responses from others that deny, lecture, fail to support or fail to acknowledge a patient's condition, and it resolved into two factors: "discounting", meaning denying and patronising, and "lack of understanding" (Kool 2010). In the original study of 142 people with rheumatoid arthritis and 167 with fibromyalgia, the fibromyalgia group, whose condition lacks visible signs and abnormal laboratory findings, reported significantly more of both from family, medical professionals, colleagues and social services than the rheumatoid arthritis group did. More invalidation correlated with poorer mental well-being and social functioning in both groups.

Name the population: that study was in rheumatic disease, not IBD, so read it as the closest available evidence on what happens to people whose symptoms have no external signs rather than as a direct measurement of Crohn's. The instrument has since been shown to measure the same constructs across six languages, two disease groups and both genders in 6,057 people with rheumatic diseases, so the two-factor structure itself is robust (Kool 2014).

Two things in that finding are worth sitting with. First, the sources people reported the most invalidation from were social services, colleagues and family, more than from doctors and spouses. If you assumed your consultant would be the worst offender, the data point the other way. Second, invalidation tracked with worse mental well-being, which reframes "I wish they would just get it" as something more than hurt feelings.

This has a name in IBD specifically. A hermeneutic study of 18 people with IBD described "kinship stigma": being or feeling stigmatised by family members, experienced as a lack of acknowledgement (Dibley 2020). A larger study of 40 community-dwelling adults with IBD found that stigma occurred regardless of whether the person had faecal incontinence, that people move in and out of feeling stigmatised depending on their relationships, and that it tended to recede over time as they developed resilience (Dibley 2018). A systematic review across the three domains of perception, internalisation and discrimination found that IBD-related stigma is associated with worse quality of life, worse psychological functioning and worse treatment adherence (Taft 2016), and a patient-and-clinician review of GI stigma makes the same point about internalising other people's assumptions (Ruddy 2022).

There is one piece of evidence that gives the whole project of explaining a rationale, and it needs to be reported with its limits. In a vignette study, members of the general public were randomised to read a clinical vignette describing IBD, IBS or adult-onset asthma, then rated their willingness to behave in a stigmatising way. Familiarity with the condition was correlated with reduced stigma, most strongly for IBD, and so was emotional empathy (Taft 2017). That is a correlation in a randomised-vignette design rather than proof that explaining your illness reduces how badly you are treated. It is nonetheless the closest thing to evidence that familiarity helps, and it fits the older framework describing disclosure and concealment as the two coping strategies available to people with invisible conditions, each with its own costs (Joachim 2000).

The practical rule: spend your energy on the people whose problem is understanding. For the people who are discounting you, more explanation is usually just more exposure. Several commenters in these threads described arriving at the same conclusion, including one who said they had simply stopped using the word with people who had shown they would not receive it.

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Explaining it to a partner or family, without a scoreboard

Answer-first: keep the conversation about logistics and acknowledgement rather than comparison, and expect the other person to have a load of their own that is also real.

The thread that became this article started with someone whose family had been asked to do extra cleaning because she was wiped out after moving out of her college apartment, and whose sister replied that she had been standing up working all day too. Read it once and it is an obvious failure of empathy. Read the replies and it gets more complicated: several people pointed out a sibling dynamic in which the request genuinely did transfer work onto the sister, and that the impact of an illness on the people around you is also real.

That is not just diplomacy. A phenomenological study interviewing 43 people, 17 with IBD and 26 family members including parents, children, siblings and partners, found real effects on relatives' emotional well-being, roles, responsibilities and day-to-day burden, with some using adaptive coping such as open communication and others falling into avoidance or alcohol misuse (Thapwong 2024). Family members in that study asked for proactive communication and information from healthcare professionals. In other words, the people around you are frequently under-informed and under-supported in a way that is not their fault either.

Three things that work better than making the case for your own exhaustion:

Ask for acknowledgement separately from help. "I need you to believe that this is not me being flaky" is a different request from "I need you to do the dishes tonight". Bundled together, the second one can make the first sound like a bargaining chip.

Give them the task, not the choice. Crohn's and Colitis UK's community list is explicit that being asked "what do you need?" is itself taxing, and that offering to do specific things works better. You can pre-empt this by keeping a short list of jobs that genuinely help so that the answer is ready when someone offers.

Concede the part that is true. Their tiredness is real to them. The sister who cleaned the kitchen did extra work. Saying so out loud costs nothing and removes the only reason they had to argue with you.

One honest note about the hardest cases. In these threads, more than one person described a spouse who responded to their limits with irritation, and two described marriages that ended. Others described a grandparent's partner calling them lazy for years. Some relationships do not respond to better explanation, and the evidence on kinship stigma suggests that non-acknowledgement by family is a recognised pattern rather than a personal failure of yours. Knowing that will not fix the relationship, but it should stop you from concluding that you simply explained it badly.

Explaining it at work, where you should not describe a feeling at all

Answer-first: convert the fatigue into output, hours and predictability, because those are the only units a workplace conversation can act on.

The evidence is unusually clean here. In a prospective multicentre cohort following 510 employed people with IBD over 18 months, fatigue and reduced quality of life were the strongest determinants of work productivity loss, ahead of clinical disease activity in the Crohn's subgroup (van Gennep 2021). In the CorEvitas registry analysis, people with Crohn's and high fatigue had two to four times more absenteeism, presenteeism, work productivity loss and activity impairment than those with low fatigue, and that persisted in the subgroup who were in remission (Feagins 2025). Note again that this registry is commercially run and most of the authors were employed by the company behind it. What it means for your conversation is that the cost of your fatigue to an employer is measurable, documented and larger than most managers assume.

So do not tell a manager you are exhausted. Tell them which parts of the job are affected and which are not:

  • "My output is normal in the mornings and drops sharply after about 3pm. I would rather move the meetings than pretend otherwise."
  • "Standing for a full shift is the specific problem, not the work itself."
  • "I can guarantee Tuesday. I cannot guarantee Tuesday plus Wednesday at the same intensity."
  • "The recovery time is the part that catches people out. A heavy Monday costs me Tuesday."

Brain fog deserves its own sentence rather than being folded into fatigue, because it fails differently and it is what people most often mistake for incompetence. In a cross-sectional study of 170 adults with IBD, 94.1% reported experiencing brain fog, most commonly at least twice a week, with episodes lasting around two hours, and brain fog partly mediated the relationship between symptom activity and quality of life (Knowles 2024). That was an online self-report sample, mostly female, with no objective cognitive testing, so treat the numbers as a description of how common the experience is rather than a measurement of cognition. It is still enough to say to a colleague: "I lose words in the afternoon. It is a documented part of this condition and it passes in a couple of hours."

The legal and disclosure side of this, including whether to tell an employer at all and what protections exist, is covered in the article on keeping a job with Crohn's disease rather than here.

Explaining it to your IBD team, where the blank look usually is not disbelief

Answer-first: clinicians often find fatigue frustrating rather than implausible, because they have few tools for assessing it and little to offer. Arriving with a completed scale converts an unanswerable description into something they can record and act on.

In interviews with 20 healthcare professionals working with people with IBD, fatigue was identified as important but difficult and frustrating to understand. They recognised its effects on patients' emotional, private and public functioning, yet offered few methods for assessing or managing it, and many expressed frustration at not being able to help more. The authors concluded there was a gap in clinicians' knowledge of the complexity of IBD fatigue and its full impact (Czuber-Dochan 2014). Set alongside the qualitative study in which 46 people with IBD reported that fatigue seemed poorly understood by clinicians and was not addressed in consultations (Czuber-Dochan 2013), you get both sides of the same failed conversation.

Crohn's and Colitis UK reports that around 4 in 10 people are not asked about fatigue in their appointments at all, and that when doctors do ask, patients are more likely to rate the quality of their care highly and to report feeling more able to cope (Crohn's & Colitis UK 2025). The booklet does not cite the underlying study for those figures, and that second finding is a correlation in any case, so read it as the charity's own reported data rather than as trial evidence.

In a thread on not being taken seriously, one person described a GI doctor responding to their account of the fatigue with "well, you LOOK ok" (r/CrohnsDisease). Another, in a different thread, described telling a doctor that walking from the car park into the medical office felt like having run ten miles, and being met with a blink. The fix is not a better description. It is bringing something that fits in a clinical record. The article on building a symptom summary a clinician will actually read covers the format, and the appointment preparation article covers what to do with the ten minutes you get.

A worked example: two weeks of notes, then one conversation

Answer-first: two weeks of one rating plus one blocked function per day gives you a pattern, a floor and a ceiling. That is what turns "I'm always tired" into something with a shape.

Log two things at the same time each evening. A 0 to 10 fatigue rating, and one functional fact: did you make dinner, did you need to lie down after work, did you cancel something. Optionally add a scored instrument once a week so that there is a recognisable number attached. Here is what two weeks might look like:

DayFatigue 0 to 10What it blockedNote
Mon6NothingNormal day
Tue8Cooking, gymLate meeting Monday
Wed8Anything after 6pmSlept 10 hours, no better
Thu5Nothing
Fri7Evening plansCancelled drinks
Sat9Most of the dayFamily lunch the day before
Sun7Housework
Mon6Nothing
Tue5NothingQuiet Monday
Wed7Cooking
Thu9Work from 2pm onwards
Fri8Evening
Sat6NothingDeliberately kept Friday clear
Sun6Nothing

Three things are now visible that no description could deliver. The floor is 5, not 0, so there is no day when you are fully recharged. Every 8 or 9 follows a day with something extra in it, which is the delayed-cost pattern that people find hardest to believe until they see it lined up. And the one Saturday you protected in advance came in at 6. That last row is the most persuasive thing on the page, because it shows the trade-off working rather than just the cost.

That is also the version to take to an appointment or to a manager: not fourteen rows of raw data, but three sentences drawn from it. Recording this daily is the kind of thing an app is genuinely better at than memory, and it is what Clairop is built for, logging symptoms and energy quickly enough that you still have the data two weeks later when the conversation happens. Paper works too. The method matters more than the tool.

What explaining it will and will not do

Answer-first: it can change how you are treated. It will not treat the fatigue, and it would be dishonest to imply otherwise.

No trial has tested whether explaining fatigue more effectively to the people around you improves anything. That is a genuine gap, not an oversight on my part, and any page that promises this will transform your relationships is guessing.

What has been tested is self-management, and the largest trial was negative. IBD-BOOST randomised 780 people with IBD who rated the impact of fatigue, pain or faecal urgency at 5 or more out of 10 to a digital, facilitator-supported cognitive behavioural self-management programme or usual care. At six months there were no statistically significant differences on either primary outcome, quality of life on the UK-IBDQ or global rating of symptom relief (Moss-Morris 2025). Worth noting on funding: the trial was NIHR-funded, and the lead author declares being a beneficiary of a licence between King's College London and a digital therapeutics company and consulting fees from it. The trial reported a null result anyway, which is a point in its favour.

Smaller psychological work is more encouraging without being conclusive. A randomised trial of mindfulness-based cognitive therapy in fatigued IBD patients in remission found that the post-treatment reduction in fatigue was maintained over nine months, but only 29% of the 108 people analysed reported a clinically relevant improvement from pre-treatment to nine-month follow-up, and secondary outcomes did not change significantly (Bredero 2024). And when 834 people with IBD were asked what kind of psychological support they would actually want for fatigue, cognitive behavioural therapy came out ahead of the alternatives, delivered online and short, with the duration mattering least (Emerson 2024).

So the honest framing is this: explaining well is how you stop losing energy to arguments you cannot win, get a bit more slack from the people around you, and get fatigue into your medical record where it might be worked up. It is not a route to having more energy, and telling yourself it should be sets you up to feel that you failed at that too.

Things in the threads that are worth a warning

Answer-first: several of the coping strategies people describe openly in these threads carry real risk, and they come up often enough to name.

Myths worth retiring

"If you slept more, you would be fine." Sleepiness and fatigue are different phenomena and merging them under the word tired hides that (Shen 2006). Crohn's and Colitis UK's advice to friends and family says it in one line: do not expect sleep to solve our fatigue.

"You don't look sick, so it cannot be that bad." Fatigue affects how you feel and not necessarily how you look, and invisibility is precisely what the invalidation research found predicts being discounted: the group with no visible signs or abnormal labs reported significantly more discounting and lack of understanding than the group with visible joint disease (Kool 2010).

"Your tests are normal, so the fatigue should be gone." Fatigue is reported by 47% of people with IBD in remission against 72% in active disease (D'Silva 2022). Note that the overall pooled figure in that review is also 47%, so a page quoting "47% of people with IBD" without saying which disease state it refers to is being loose with it.

"It's really just depression." Depression and low quality of life were the only factors consistently associated with fatigue across three scales in 465 people with IBD (Norton 2015), so the association is real and pretending otherwise damages your credibility. What it does not establish is direction, and the honest position is that mood and fatigue travel together rather than one simply causing the other. Saying so first is stronger than being told it.

"My tiredness is objectively worse than yours." It is not measurable between people, the mean scores of patients and reference populations sit only about two points apart (Jelsness-Jørgensen 2011), and the community threads themselves push back on the framing. Duration, recovery and predictability are the defensible ground.

"Explaining it properly will fix how people treat me." Familiarity correlates with less stigma (Taft 2017), which is a reason to try, not a guarantee. Some people will not come round, and the IBD stigma research describes people moving in and out of feeling stigmatised over years rather than resolving it once (Dibley 2018).

"A number is just my opinion with a decimal point." The three main fatigue scales were highly correlated with each other and showed reasonable test-retest agreement in a sample of 465 people with IBD (Norton 2015). Self-reported does not mean unreliable.

When to see a doctor promptly

This article is written for people who already have a Crohn's diagnosis and a known pattern of fatigue. New fatigue, or fatigue that has clearly changed, is a medical question rather than a communication one. Contact your IBD team or see a doctor promptly if you have:

  • Blood in your stool, or black or tarry stools
  • Unintentional weight loss
  • Fever, or drenching night sweats
  • Fatigue that has worsened sharply over days or weeks rather than staying at its usual level
  • Marked breathlessness, dizziness, chest pain or a racing heart, which can accompany significant anaemia
  • Symptoms waking you at night
  • A new lump, abscess or perianal pain
  • New confusion, slurred speech or fainting, all of which were described in these threads and none of which should be filed under fatigue

Obstruction warning. Severe abdominal pain that comes in waves with vomiting, bloating and an inability to pass stool or wind can indicate a bowel obstruction. That needs urgent assessment the same day, not a note for your next appointment, and it matters more if you have known narrowing or have had bowel surgery.

If you have not been diagnosed and you are reading this because the fatigue feels wrong, please see a doctor rather than a forum. Fatigue has a long list of causes that have nothing to do with the gut.

The honest bottom line

The reason "I'm tired" fails is not that you are describing it badly. It is that the word maps onto something universal, and the measured difference in how tired people feel is smaller than the difference in how long it lasts and how much of your week it eats. So stop competing on intensity, which the data will not back you up on, and lead with the three things that are genuinely yours: the cost, the recovery time and the unpredictability.

Pick one analogy and reuse it until it becomes shorthand. Write down what fatigue has actually changed rather than how it feels. Fill in a validated scale and let a number carry the part of the conversation that adjectives keep losing. Tell your workplace about output rather than feelings. Bring something to your appointment that a clinician can file, because the evidence suggests they often want to help and do not know how.

And keep your expectations of this calibrated. Explaining will not give you more energy, no trial has tested whether it improves anything, and some people will not come round however well you put it. What it can do is stop you spending the small amount of energy you have on being disbelieved.

Frequently asked questions

How do I describe this to someone whose idea of tired is a bad night's sleep?
Do not try to out-describe them. Describe the cost and the recovery time instead. A healthy person's tiredness clears after a rest or a night's sleep, and yours does not, which is the one part of the comparison the data actually support. In one Norwegian study, chronic fatigue lasting more than six months was reported by 29% of people with Crohn's compared with 11% of a reference population, while average fatigue scores between the groups were much closer together. Arguing about intensity loses. Arguing about duration holds up.
What words actually land with a partner, a manager or a parent?
Concrete trade-offs, not adjectives. I can do the shop or the dinner, not both. I will need to sit down after twenty minutes of standing. If I do this today, tomorrow is gone. Crohn's and Colitis UK suggests writing down what fatigue has changed in your life, such as plans dropped, meals skipped or deadlines missed, because those are checkable against what the other person already knows about you.
Is there a fatigue score I can point at instead of arguing about adjectives?
Yes. The IBD Fatigue Scale, or IBD-F, was built specifically for Crohn's and colitis and was developed with input from 567 patients. Crohn's and Colitis UK, which helped create it, explicitly suggests using a completed copy to discuss fatigue with family, friends and employers. Its makers also validated it for repeated use, and a Brazilian validation estimated that a change of about six points is the smallest that reliably means anything.
Why is the fatigue still there when my bloods and scopes look fine?
Because fatigue in IBD frequently persists into remission. A meta-analysis of 20 studies put fatigue at 47% in remission against 72% in active disease, so a normal set of results does not predict a normal energy level. That question has its own article on this site, since the causes with the most evidence behind them are sleep, mood, iron status, muscle loss and medication rather than hidden inflammation.
How do I ask for less without sounding like I am making excuses?
Name the specific thing rather than asking for general understanding, and offer the version you can do. People want to help and usually do not know how. Crohn's and Colitis UK's own community list asks for exactly this: offer to do specific tasks rather than asking what is needed, invite us anyway, and do not take cancellations personally. Asking for a sofa evening instead of a night out is a smaller ask than it feels.
How do I track fatigue so I can show it is not random?
Record two things a day at the same time: a fatigue rating and one function that fatigue actually blocks, such as whether you made dinner or whether you needed to lie down after work. Two weeks of that gives you a pattern and a floor, which is far harder to dismiss than a description. A validated scale on top of it makes the numbers recognisable to a clinician.
Should I use spoon theory, or does it sound dramatic?
It is the single most recommended device in the Crohn's community threads, and it works because it makes a hard daily limit intuitive rather than making tiredness sound worse. It is a personal essay by Christine Miserandino from 2003, not a piece of research, so use it as a shared language and not as an explanation of mechanism. Some people find it goes stale with repetition, and one commenter noted it made no sense to them before diagnosis because they had never experienced the other side.
Why does my doctor look blank when I describe it?
Often not because they disbelieve you. In interviews with 20 IBD clinicians, fatigue was described as important but difficult and frustrating to understand, with few methods offered for assessing or managing it and several expressing frustration at not being able to help more. Crohn's and Colitis UK reports that around 4 in 10 people are not asked about fatigue at appointments at all. A completed scale changes the conversation from a description they cannot act on to a number they can file.
Is it fair to say my tiredness is worse than theirs?
It is understandable, and it tends to backfire. Fatigue is not comparable between people in any measurable way, and the community threads themselves push back hard on that framing: high-scoring replies point out that a family member's tiredness is real to them, that an undiagnosed illness sometimes turns out to be behind it, and that carers around you are exhausted too. The winning move is to shift the axis from intensity to duration, recovery and predictability, which is where your experience genuinely differs.
Does explaining it better actually make life easier?
Nobody has tested that directly, and it would be wrong to promise it. What the evidence shows is that invalidation from the people around you correlates with worse mental well-being and social functioning, and that familiarity with a condition correlates with less stigma toward it. Both are correlations. The largest self-management trial for IBD fatigue, IBD-BOOST, randomised 780 people and found no significant benefit on either primary outcome, so explaining is a way of being treated better, not a treatment.

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