I find myself worrying more and more lately about how to tell certain people about my mental health. I realize it's an important conversation to have, but how do I go about approaching this?
For context, I've been going on dates with this man for a couple months now. We see each other on an almost daily basis and I've been having a really great time! The only issue is that he's starting to get to know me a lot better and he's starting to ask questions about my moods. This may seem like a dumb question but I'm having a lot of trouble thinking of the right things so say. 
I'm also worried about the negative stigma that comes with having BPD, I don't want to scare people away.
Also, I've recently moved into a new place with a new roommate who's been a friendly acquaintance of mine for a few years know. I feel like he deserves to know about my issues because I'm living with him, but again, I'm not sure how to bring it up. It's causing really bad anxiety and I don't know what to do.