My (non-bio) mom has UC and her one big flare up in life was high school exam time she said (she still has nightmares about that time). Since then only small episodes easily treated with prednisolone, but often easily attributed to stress as well. Like days before an important work event: problems. Team members being ill and she has to cover: problems.

I personally have Crohns and PSC as well, and I think less stress helped; but I am on Rinvoq (INN-Upadacitinib) and eat psyllium husks and still have occasional diarrhea, what helps A TON however is sport. I skateboard (and whenever I find the time I go HARD), and 1-2 days after I am always good, colon wise. When I dont skate for a week and eat slightly fatty i have problems, but when skate on a friday and then order opne of those disguting cheap pizzas from that greek place i am still good (i dont do this often but it happens).

Why I have these autoimmun diseases is also an interesting question. My biological parents are both good in that regard, so is my extended family. However I do know my bio-mom smoked while pregnant, and i passively smoked in the household up until I was 12 (and then started smoking at 14, quit with 18)

So maybe thats part of it too

Its very interetsing all that, also scary