I use to get migraine headaches really bad. Sick headaches would incapacitate me and cause heart palpitations. One eye would swell shut and dribble tears. I'd throw up.
The headaches were caused by eating foods containing MSG, and soy sauce with wheat base. When I eliminated Mono-Sodium-Glutamat (Natrium Glutamat) and soy sauce from my diet, the migraines went away, never to return. Best to avoid potlucks and chinese buffets.