When I told my sister, it was an awkward time - we had just had a fight and she wasn't interested in anything that I said - I sent the info through an email. After things calmed down, she and I talked and was open about it and was actually supportive - she hasn't gotten a diagnosis, but she feels she identifies as we are twins and grew up in the same dysfunctional household.

I haven't told my mother - she denies that I have depression and wasn't supportive at all about that, so I am hesitant to tell her about BPD - even though she displays a lot of the BPD characteristics herself.

I wish I could tell her because I want her to get help too, but she's unwilling to look in the mirror and face some difficult things. Can't force her. But, I'm also not going to give her ammunition to hurt me.