Karl - it is very hard to find triggers as it is so individual. However, some of mine are caffine, milk, peanuts, spices, fats, corn, seeds of any sort. I have mentioned some that I have an intolerance to because sometimes it is an intolerance that sets you off. And, I can eat corn on the cob, but not canned or frozen corn. I have found it is the shell or husk on the corn bits that kill me. Of course, stress turns me inside out also. and being over tired, damp warehouses, air conditioners - and on and on.Good luck finding all of yours. It has been a life long project for me.bj33