Medicine certainly isnt the exact science we are oft led to believe it is.
This is mostly gonna be your own call, you have to get to know the signals your own body are putting out.
When I was 30 I had a ulcer in my intestine perforate throught he wall and had to go to immediate surgery or die.
I had a colostomy bag, then a take down, with scarring from the second surgery, so a third corrected everything.
I did enjoy telling the doctors and everyone else in range how much "I loved them all" when coming to

)
Anywho, I was told I would be on predinzone and some other drugs and a highly restricted diet the rest of my life and probably have more surgeries and alot of pain. Diet restrictions included high fiber products (whole grain etc.) milk products, nuts, spicey food, etc.
To this day I eat and drink whatever I want, have had NO recurring flare ups (what I was diagnosed with is Chrons disease, similiar to irritable bowel syndrome, and they say they dont know what causes it, or what the cure is) and I have TAKEN NO meds for it. I do TONS of fiber, milk, nuts, and SALSA, hey, I live in SO CAL, how can you not eat salsa and mexican SPICEY FOOD.
Moral of this story? You are gonna have to learn for yourself, and pay close attention to your own body.