"Has anyone else experienced these feelings of fearing others think you’re crazy??"

Oh, hell yeah! Different life situation, but very similar issue... in my case, I do not often have to interact with others, and when I'm not well, I isolate as much as I can get away with. THEN when I do go out into the world, I feel like there's a neon sign flashing STURB over my head. So in that self-conscious/ paranoid state, eventually I realized I am (sometimes) looking at people strangely because I've already decided they're looking at ME strangely -- like I'm a whack job -- but what's really going on is I am thinking waaaay too much. Don't we tend to get too far inside our own heads and lose perspective about everyday interactions with people? Those without BP or other mental problems are not likely to be constantly thinking about whether or not anyone sees their "hidden" illness. So their minds are more or less free to observe me/you... and they pick up a vibe? They sense something is "off" here? Only because we're already putting out that "off" vibe without wanting to or even realizing it? So they may react in some way that pushes our paranoid buttons and the whole damn mess becomes self-fulfilling BS.

To me it just means getting out of my own head -- relaxing, going about my business with out preoccupation with another's thoughts or opinion of me. Stop thinking so much, I tell myself, and just BE. Not always doable when you've got stuff bouncing around inside your head (or a congealed glop of depression for a brain).