Hi, I'm so new to being aware of food sensitivities that I'm still in a fog. Does anyone know if a reaction could feel like 1) your face is hot (on fire) yet no large rash, just a little red in cheeks. 2) your eyelids feel full or swollen - yet don't look too crazy. 3) immediate headache. My stomach doesn't seem bothered like I've read others reactions, Mine...