I have a silly question. I am allergic to many things from grass to juniper trees. So my question is this: If I am allergic to juniper might I also be allergic to gin? I am asking this because I tried a gin drink for the first time last night (didnt like it much anyway) and this morning I awoke to a horrific hangover. It seems odd to me to have a hangover from a single drink but I think the allergy explaination would make alot of sense.