Low fodmap was of enormous help to me too. For years I thought I had gluten issues, as most bread caused me trouble.

Turns out every wheat product with the exception of sourdough wheat bread is high fodmap! I tried low fodmap and nearly instantly got a lot better. And I can now eat some fodmaps by reintroducing in lower amounts.

Highly recommend anyone with ibs try this. It is complicated but you can get free or cheap apps that let you search ingredients fast to figure out what to remove.

And the great part is the intolerance is quantity based. So, celery in a recipe? No problem. Just don’t eat a massive amount of it. Very much unlike any kind of hard avoidance plan.

This won’t solve all issues but give it an honest shot. Mine has moved from seriously debilitating to minor inconvenience.