My (short-and-never-sweet) experience is that I had some of those now-that-I-look-back-on-it moments where I should have not dismissed my substance abuse/wandering around feeling like I was going to cry/sleepless nights as being "angsty" in my early 20's but I never stayed in therapy long enough to get a diagnosis. Luckicly, I had a physician in my mid 20's who screened me for depression and finally convinced to go to counseling and also take medication prescribed by her or a psychiatrist. The counseling referral gave me the dx of MDD and also suggested that "even though I don't think you have BPD, I think DBT would help you with you anger". So, I'm here now wanting (but not wanting) to be "one of the group". I really just don't want to feel as I have felt before, but that includes feeling like I'm not not "in" even though I feel shouldn't want to be "in".

I hope that makes sense.