I have fm very bad as well. But, since I have the constipation version, I had no indication like diarrhea of what food was ok and what wasn't. I was always bloated and gassy to one degree or another until I got it figured out what I could eat and started using Phillips Milk of Magnesia on a regular basis. The latter also took care of the SIBO. Some food bothers my stomach immediately, like fruits and fruit juices, honey, soda, gum, etc. but others do not. I can't eat onions, garlic, peas and carrots either. Sometimes I can eat a few nuts, sometimes I can't - I figure it depends upon how much fructose is already in my g.i. tract, and there is no way for me to really know that. I agree - it is very difficult to manage, but it does become pretty routine when you aren't trying new things! Thanks for replying.