I am fifteen and i have had headaches/migraines ever since i was nine they are constant all day. I am completely immune to tylonal now, and i had to switch to excedrin. It took three diffrent doctors MRI, many blood tests, urine samples, xrays, and frustration until i finally found somthing to calm them down a bit. I am now on Atenolol and Amitriptyline. It has been about six months since, but now the meds are starting to ware off, and im having them just as bad. my mom likes to blame it on things that i do, i know that its only to help me but sometimes stopping somthing makes my problem worse. She heard from a friend that chicken can cause headaches/migraines for a certain type of blood types. I eat chicken all the time and im really hoping that its a myth but i guess i could give it up to get relief. any help?