How were you diagnosed?
In my case i begged my consultant to refer me to a local PD team. I then underwent their ten week assessment and upon meeting the criteria for diagnosis they offered me DBT. From what i've heard recently, it seems that procedures for diagnosis and treatment vary substantially across the UK. All i would say is try and do some further research but be very wary of one or two doctor's opinions - what kind of expertise did they have to be able to make such a decision? How long was it before they decided? It's actually more of a specialty as far as i'm aware so unless you were referred to them specifically to get that diagnosis confirmed, i would be requesting input from a personality disorder team. They were who diagnosed me but whether this is the same practice nationwide i couldn't actually say anymore. What i would say is that psychiatrist's aren't always best placed to determine certain diagnoses, especially if they're not the ones who can potentially provide treatment. It's usually why outside authorities are bought in. I wouldn't pay much attention to the opinion of a therapist if PD's are not their specialty either. From my experience it seems that unless someone's either very experienced and/or has a specialty in whatever condition you have, they can actually be pretty clueless. For now i would focus on something akin to reassessment. If it's the case, find a way to explain that you feel something could be going unacknowledged and might require treatment or that the current understanding of your difficulties needs to be reexamined before your team are better able to help. It's your life at the end of the day and it's their job to make sure they try and do the very best by you. I can only wish you luck