Many with BPD, like me, have gone through therapists and diagnoses to get here.
Since anxiety, depression, rapid mood differences, avoidance, and more can be part of BPD, sometimes the diagnosis is of just that part of BPD.
I think I am very lucky to finally, after years of meds that didn't help and that I eventually stopped and therapies that didn't help, have found a therapist who understands what it's all about.