I hope you find something and share it. I am almost afraid to eat out where I can't go right home. I don't know what it is and I've always had a sensitive digestive tract. I had my gallbladder removed years ago and I'm pretty sure it started after that. I don't think it's food though. Once I was about to eat lunch at work, took ONE BITE of a potatoe chip and immediately had to run to the ladies room.
One day something is fine. I'll have it the next day and NOT! I never know what's going to trigger it.