chocolate causes migraine?

in my case yes...i have to admit that i have allergy to chocolate. i know it's really sad that i have a food allergy to something i like....i found out this when i had half block of 82% dark chocolate. I suffered from migraine for 2 days. it was really aweful....since then, if i overdose chocolate, i always have migraine......it's not new, there is some controversy whether chocolate causes migraine directly.....some researches say no, some say yes....in my case, yes. direct cause...from the medical research----Phenylethylamine, theobromine and caffeine are chemical triggers present in chocolate. They may cause a headache by altering the cerebral blood flow......yeah...it's sad.....i cannot eat more than 2 pieces of chocolate a day, otherwise i suffer.....