Yes, alcohol affects the nerves, and even people who don't have BFS have problems after drinking. They end up with inbalances in their systems that lead to headaches and nausia, and for us the twitching can get extremely bad. You'll need to live without drinking from now on, and you won't miss it in the long run. Hey, they always told us drinking was bad for us, and there are many other things to take in that are much better. You should also avoid coffee and Coke. Stick to fruit juice and your twitching will feel better.