I have had IBS for close to 10 years now and Bronchiectasis/MAC for 6.
I have eliminated gluten and dairy from my diet. What I have found helpful from my naturopath is a product called Enteragam. My gastro never told me about it because you used to need a script for it. In the past year Enteragam can be purchased without a script online. It is very expensive $105 for 30 packets. Sometimes I need 2 packets a day. I also take a variety of probiotics. With that regimen, I am usually good with no intestinal problems. I can not eat raw vegetables. Everything has to be cooked. If a salad is not properly washed or there is one germ in it my stomach reacts.
@shooei it sounds like you may have some parasites or SIBO. I have had both and it makes everything uncomfortable. If possible, find an MD, naturopath, or functional integrative MD that can work with you on this. You should not have to suffer.
I find those of us with Bronchiectasis/MAC have sensitive intestinal tracks. What someone else eats that has no repercussions for them would turn one of us inside out.
Prayers for finding a solution.