Hello, I've been vegan for about 4-5 months and had never had problems with drinking/being sick the next day. Since I've gone vegan, I always seem to get sick the next day after drinking. I only had a couple of beers last night and this morning I'm not hungover (I don't have a headache or anything) but I feel really nauseaus. It is as if I simply can no longer digest alcohol. Is this normal??