Help end medical misogyny. Sign our petition.

Help end medical misogyny.
Sign our petition.

Sign the petition

Please or to access all these features

General health

Mumsnet doesn't verify the qualifications of users. If you have medical concerns, please consult a healthcare professional.

If you get diarrhoea after eating, did you figure out what caused it?

58 replies

BreezyBlock · 29/05/2025 14:39

I have started getting diarrhoea after eating. But not every meal. At the moment I can’t see a pattern. It’s definitely related to me eating as it happens 30 mins to 1 hour after I eat but not every meal. After it’s happened I feel fine but it’s incredibly urgent when it does happen.

Does anyone else get this? Any tips for figuring it out?

OP posts:
naffusername · 30/05/2025 18:32

The cholyestramine has been a life saver for me.

Then it started up again. After tests, it turns out I'd developed an allergy to milk and am anaphylactic to eggs. Full on sweats, hive, GI distress, wheezing. Epi pen level.

Gawd I miss omelettes.

Goody2ShoesAndTheFilthyBeast · 30/05/2025 18:36

Sounds like dumping syndrome.
There are several causes, although you mostly hear of it happening after certain surgeries there are other reasons too.

MarchingOnTogether · 30/05/2025 18:51

Ask for a coeliac test as this is a common issue for people with coeliac disease.
If thats negative then it could be an intolerance, if it happens after most meals I'd suspect gluten, wheat or milk could be the culprit as a lot of foods contains these ingredients.

SorrowsPrayers · 30/05/2025 18:54

my case was exactly the same as @HanarCantWearSweaters.
Ive beef on colevesalem ( ??) tablets for it and I am transformed!

Strawberrygrower · 30/05/2025 18:55

For me I found it was egg yolks. I can’t eat whole eggs now or any food which uses eggs, cakes, sauces etc. although I can eat food with just a trace of eggs. It’s an egg yolk intolerance.

Iloveeverycat · 30/05/2025 19:01

This happens to me but only when I don't eat all day and only have breakfast then dinner nothing at all in between. I have made a note of this and it only happens then and not any other time. I have put it down to not having a gallbladder and the bile is irritating my stomach when I don't eat.

HanarCantWearSweaters · 30/05/2025 19:10

SorrowsPrayers · 30/05/2025 18:54

my case was exactly the same as @HanarCantWearSweaters.
Ive beef on colevesalem ( ??) tablets for it and I am transformed!

Colesevelam is exactly what I’m hoping for too! But my GP keeps saying it’s not licensed for BAM in the uk so they have to check with the specialist at the hospital what the starting dose should be. Ok….please do that, then? Hmm I’m so glad yours is working well for you!

GiveDogBone · 30/05/2025 19:12

Get a phone appt at your GP, if you need a referral, best to get it now rather than later, given you’ll almost certainly have to wait anyway.

It’s not going to be a bug if it’s happening multiple times (well unless you’re really unlucky). But as other posts note, there’s lots of other things it could be (coeliac, IBS, etc). A specialist will work through them. Also get a bowel cancer test for peace of mind.

DuckbilledSplatterPuff · 30/05/2025 19:18

This happened to me, but then I had a blood test and found high blood glucose. Medication for that and diet seems to have cleared it up. Sounds like you need a range of tests to pin point the cause.. Its very inconvenient and a worry.

RickiRaccoon · 30/05/2025 19:21

GP said it was just IBS but I worked with a nutritionist and did an elimination diet and we decided I'm a little lactose intolerant and I suspect just sugary and fatty foods irritate my stomach. I eat quite healthy and mostly avoid milk and that seems to work.

Reugny · 30/05/2025 19:22

I am lactose intolerant and worked this out in my 20s with housemates and friends.

However I then discovered that apples give me diarrhea and so do oats for breakfast. With oats it's likely because I eat a sufficient amount of fibre anyway and the oats make everything worse.

Anyway I simply don't eat them.

My GPs have never been interested as good intolerances are common. However I do know a 3 older women who are having serious issues as their intolerances mean they can't eat very much so their GPs are concerned.

Flossy1985 · 30/05/2025 19:32

LostWirhoutYourLove · 29/05/2025 22:55

Sounds to me like diverticular disease.
I have to take loperamide about 20 mins before eating to avoid the trouble you’re having op

It’s definitely not I suffer badly with diverticulitis and you don’t just shoot it out. Hospitalised a fair few times and laxatives don’t work.
Op watch your fibre intake and minimalise dairy and fatty bad foods

littleweedandherflowers · 30/05/2025 19:33

Dairy ! 15 years it took for me to realise ! I thought it was Ibs but since not having dairy i

littleweedandherflowers · 30/05/2025 19:33

Since not having dairy I’ve been a lot better xx

RuthW · 30/05/2025 19:41

Yes but absolutely no idea what causes it. It’s usually on a Saturday or after I’ve eaten out. It’s not all the time and can’t work out what causes it.

SorrowsPrayers · 30/05/2025 19:47

@HanarCantWearSweaters. It was a consultant who originally prescribed it for me. About 6 months later the GP decided to put me on something else ( dissolving powders) that were utterly inconvenient and not as good. Fortunately a lady working in my chemist also has BAM. She said that they don't like prescribing colesevelam as it is expensive. I told gp it wasn't working and giving me side effects ( true) and got back on the tablets.
Persevere with the gp to get them. I am just about back to normal now.

Sarah557 · 30/05/2025 19:57

Omg I have the exact same thing!! Usually first meal of the day but could be after other times sometimes. I go to the toilet before breakfast, then as soon as I eat, bam it comes again!

Somedays nothing then? It’s so strange and very annoying! I can’t seem to find out what food is causing it (if any!!) I do usually have it after ice cream which is all I’ve been able to workout but I’m not eating ice cream for breakfast ha!

Arran2024 · 30/05/2025 20:13

I started to develop this and very long story but it turned out I was allergic to chicken! This is not something I was expecting. I thought no one was allergic to chicken and it must be something else.

This is why you mustn't assume anything. Write everything down. I had eaten chicken all my life. This was right out of the blue.

Nowadays I can't eat rich food. Or fruit. Or mily stuff. If I do I know I will suffer later. And I don't drink alcohol.

If your problem is a reaction to food, in my experience you feel so much better once it's out of your system.

Sometimes it's to do with how you are feeling - stress, periods, that sort of thing. Sometimes you can't eat sth on an empty stomach.

Btw I had terrible problems with strawberries, mushrooms and nectarines, but it turned out it was mould. It's the fine fur that grows on them. I can't have a strawberry smoothie from a shop as they buy the going-off fruit. I would be fine at Wimbledon where they are really fresh.

Basically, my body just wants rid of the stuff it can't handle. And then I'm fine.

PurpleYarnivore · 30/05/2025 20:33

I’ve had the same problem for around 9 months , completely dominated my life as it just hit with no warning and trying to find a public loo a nightmare . Was usually after first meal of day ,and only in the morning - can eat what I want in evening . Cut out alcohol , caffeine, lactose , wheat etc . After every blood test under sun and many stool samples everything clear . GP at a loss til I suggested bile acid malabsorption - I had my gall bladder removed 18 months ago . Waiting to see a consultant to confirm but 2 loperadamide ( Imodium ) every morning now works 80% of the time . Apparently BAM can cause the gall stones as well as the symptoms after gall bladder removal which makes sense as I had none of the reasons for getting them .

legotoe · 30/05/2025 20:34

I used to have this all the time about two years ago and now only get it rarely.

But I still take loperamide prophylactically about 30 mins before eating if I'm going to be away from home and having a decent meal (i.e. restaurant, dinner party).

I couldn't find any common food groups but I narrowed it down to any one of the following:

  • eating faster than usual
  • eating more food than usual
  • eating richer food than usual
  • taking in more fluid with my meal than usual (drinks/soup - seems to be a volume thing)
  • drinking diet drinks with food
  • drinking caffeine with food.

The last time I experienced it was a couple of months ago when I went to a friend's house for lunch. I stupidly accepted a coffee before we ate and I could feel the stirrings of cramping even before we started eating, so I took a secret loperamide but it was too late.... I ate very modestly but had awful diarrhea about 15 mins after the meal - just one (awful) bout, then was fine.

I'm not sure if I the reason I get it less now is because I am conscious of the triggers above so avoid them, and/or the prophylactic loperamide on big occasions, but it's something I can generally manage. It does require some modifications to my plans, e.g. I won't go out for a long dog walk straight after lunch, or walk the resort after dinner on holiday. If I go into town, we will always shop first, then eat (so we can then drive straight home before any trouble kicks off).

I am going out for a celebration Indian meal tomorrow night 45 minutes drive from home so I will (a) not eat huge amounts during the day so I have a relatively empty bowel (b) take a loperamide half an hour before eating (c) just have a main, no starter/sides (d) have water to drink, and sip sparingly. I feel fairly confident with those measures I will be fine.

AlteredStater · 30/05/2025 23:53

Reugny · 30/05/2025 19:22

I am lactose intolerant and worked this out in my 20s with housemates and friends.

However I then discovered that apples give me diarrhea and so do oats for breakfast. With oats it's likely because I eat a sufficient amount of fibre anyway and the oats make everything worse.

Anyway I simply don't eat them.

My GPs have never been interested as good intolerances are common. However I do know a 3 older women who are having serious issues as their intolerances mean they can't eat very much so their GPs are concerned.

Exactly, my food choices are becoming more and more limited and I am not getting enough protein so am having to think how I can restructure my diet yet still avoid foods that give me problems. It shouldn't be this hard!

Fluffmum · 31/05/2025 01:08

Gallstones

sashh · 31/05/2025 06:34

For me it is lactose.

If there is too much in a meal then about 30 mins later I get stomach cramps followed by needing the loo.

This might be TMI but my body then seems to go through the Bristol stool scale.

I can eat some lactose as part of a meal, so a Yorkshire pudding as part of a roast is fine but 2-3 is not a good idea (homemade not bought).

And it isn't always obvious there is lactose in something, I had sausages once that set me off.

ThisRedLion · 31/05/2025 08:20

I have this problem and have just found out I have fibromyalgia and that the stomach cramps and the urgency is severe at times was told by specialist believe it or not that this is a symptom and can be for other underlying issues other than ibs hope you find out what's the route cause of yours

angela1952 · 31/05/2025 11:35

I've had two NHS tests for gluten, one positive and one negative. I come from a family with many Coeliacs and I'm usually pretty careful and have been fine recently, but not the last few days. Thinking back I don't believe I had any gluten over the past three days or so so I should be OK today. Really annoying.

Swipe left for the next trending thread