Answers are assembled from clinical guidelines, ESPEN recommendations and open research. Every statement is shown with the quote it rests on; when the sources have no answer, it says so.
Log the good days too: without them there is no way to tell “I was fine” from “I didn't open the app”, and every conclusion about what does not suit you falls apart.
Computed from your own diary against a fixed list of food groups. Nothing here is a cause — it is what happened more often together.
Remove one food group, wait, put it back. The return is what separates a real intolerance from a hopeful month.