I know a lot of woman, myself included, who were in this kind of work and gave it up when they got sober, or (like me) got too messy to work.
I am unsure if you need to be dishonest with a sponsor about this kind of thing and your need to continue. I know of a few woman who have carried on this kind of work into soberity. Personally, I couldn't. Like you have said, I had to drink to get through it.
Regarding the need to drink with them, I'm sure if you 'just happen to be on medication that requires you to stay alcohol free' or a similar story, most people would be understanding of this. Saying you are allergic to alcohol is another good excuse also.
Keep an open mind about what you think, others in AA will think of your situation. It shocked the heck out of me when my sponsor told me about a rather 'well known' madame and escourt was a member of our fellowship. And I think she's 12 stepped a few girls because of her line of work.