I diagnosed with BPD by 2 different psychiatrists in initial 30 min sessions and after being asked questions relating to my difficulties with emotional regulation and impulse control. 

Then a therapist suggested I might have CPTSD instead because of persistent childhood trauma that the psychiatrists didn't inquire about. 

I know there's degrees to BPD and that I definitely have CPTSD and a lot of symptoms overlap. The one thing that makes me think I might have BPD is the Favourite Person syndrome that I experience frequently with people I get infatuated with, as well as very self destructive tendencies. 

Does the FP phenomenon necessarily mean I should be leaning towards BPD, or might it also be attachment issues and not BPD? 

I'm struggling to find adequate help through therapy at the moment and I'm not with my first therapist anymore as I moved away and the video sessions weren't working. Anyone else in my shoes here? Would greatly appreciate some input.