Was your doctor doing labs on you? Im surprised your liver enzymes weren't through the roof if you were drinking a lot on MTX..
Im on MTX, too. And for me, the worst part is not being able to drink. Not that I am an alcoholic, but I like to drink a few beers 3 or 4 nights a week. The derm said it's ok to drink in moderation, but from doing research online about MTX, I know it's not a good idea. The Psoriasis is bad enough, I don't want liver problems, too.