I was diagnosed almost 2 years ago.  I know that I have I “quiet/high functioning bpd.” It took awhile to even get a diagnosis, I had been looking into it and didn’t know how to bring it up or how to even ask for a diagnosis screening. 
I hadn’t really been to many sessions with this one therapist. I didn’t really care how well I knew the guy I just wanted to know what was wrong with me. At this point I hadn’t even gotten to my teenage years of my life story. So in his defense he didn’t know much about me yet. Anyways so I decided to just casually bring it up. 
“Hey so I was reading this awareness post about bpd, and realized I share some of those symptoms.” And he without even thinking about it said,
“no.”
I felt embarrassed, because what I thought would be an explanation for my behaviors and emotions turned out to be something else I “wanted to add to the mix.” I thought I’d never bring it up again. I did though. The next week I just asked “so what is wrong with me.” And I asked why he said that I didn’t have bpd. And he told me it’s because I was a good student, have a job, have “friends.” I didn’t even think that those were defining factors of whether or not you had bpd. 
Fast forwards, found a new therapist. She diagnosed me with bpd. I had explained my whole story to her, so maybe I’m being unfair? Still bothers me a lot though.