I've never been a heavy drinker. I enjoy a beer or two a couple times a week, but I seem to have an allergy of some sort to certain beers. I sometimes get an instant headache before the first one is done...then the night is ruined. I think it could be dirty taps...may also be from mixing beers. I home brew a couple times a year for the fun of it, and that stuff is usually okay. Most of the hard stuff doesn't agree with me, so I avoid it. Honestly, I'm glad it makes me sick sometimes, because I don't need it to become a life altering habit.