I'd never breathe a word of it at work. My family knows. Three friends know. I don't feel the need to tell anyone else. I've thought about sharing with a few friends, but they have never seen me drink and would be shocked, I'm sure. I don't seen what I'd gain by telling anyone else right now.
But, if I was in a situation and there was some expectation that I should join in the drinking, I might have to explain the situation so that they'd see the whole picture.