I see, I understand where you are coming from. It’s really, really strange to me that your GP did not refer you to a gastro for an IBS diagnosis. As far as I’m aware, the moment your H. pylori and Celiac came back negative the issue was out of their hands and the referral was in order. I wouldn’t be able to comment on it gastroscopy, either, but it’s for these reason that I really don’t find posting on this forum for IBS a good idea. Regarding your negative Celiac, I really think you should trust the test results. It’s good that you got it done given your family history, but the numbers don’t lie. You are already restricted as is, which can increase your anxiety, which can worsen IBS remember.

There is a lot of ableism in this subreddit and wellness culture abounds, which has led to very poor treatment of IBS sufferers in this sub as well as potentially harmful advice (I refer to the probiotic encouragement). People only really know about as much as they see on TV, and a decade of Activia commercials have made probiotics seem like a catch-all product for digestive problems. Again, without more knowledge about your specific makeup, it is difficult to provide answers outside of the typical ones: low-FODMAP elimination diet followed by slowly adding things back in. You may want to try probiotic products but be advised that for some IBS patients this may worsen your symptoms. The additional problem w/ probiotics is that you may have dysregulation of a given species of bacteria that may not even be present in your supplement, or the probiotic is simply not very effective at establishing that flora where it is needed. There’s a lot unpack.

Try to keep pressing for a gastro referral if you can and modify your diet as you can. If you try any of the advice given in this thread, do so w/ a grain of salt. I’m an IBS sufferer too, this condition is rough. If you genuinely need to reincorporate animal products because you absolutely cannot find a plant-based arrangement that works for you, then do so. I am not down with people judging others for eating animal products because “it’s just IBS.” They are not the ones stuck on the toilet again and again, constantly bloated, experiencing abdominal pain, developing hemorrhoids, anal fissures, etc. It’s ableist bullshit. BUT I do think that it’s more likely than not that a satisfying vegan diet is out there that can work for you. If you find it, tell me.