I know you posted this a long time ago but I have experienced bipolar disorder since I was a child, but was diagnosed just last year. I am wondering the same thing about BPD. I know how you feel! You are not alone. I have an appointment with my psychologist next week and Im going to bring it up. What I'm planning is writing down things I do that may be part of BPD, and let her ask me more questions to see. Hope this helps!. 💕