Feeling like you don't fit in anywhere is so difficult.
With your AA friends, is it possible that things will improve if you set firmer boundaries? Just like non-alcoholics can conceptually understand alcoholism, but can't really grasp the extent of the emotional side of it, maybe the people at AA simply don't realize when they're triggering your emetophobia. Perhaps if there are a few of them that you feel somewhat close to, you could meet them for coffee before or after a meeting and explain a bit more about how they can help you to feel comfortable?