All my close friends whom I have known since adolescence know. I have never had a problem with that. I do not tell people whom I have met recently, except one date a couple of days ago who volunteered his depression dx accompanied by a Lexapro prescription so I reciprocated with my bp dx accompanied by Lithium. But he was the one who started! As expected in such a r/s of equals so to speak, my disclosure did not cause any problems and he wants to see me again soon.