ok i don't know if this has ever happened to anyone else, but my fiance said that i could be allergic to alcohol. 9 times out of 10 i can have a drink or two and a couple hours later, i feel like c**p. my stomach hurts, my head hurts i feel like i want to throw up. usually i would think of it as a hangover, but i mean 2 hours later i have a hang over. could it be an allergic reaction to alcohol?