I've been on since 1993 for a seizure disorder. I also have bipolar and ptsd but I didn't file under that. Anyway..one of my reviews sent me to their docs and it was because my gp had been lazy and not sent all the paperwork they requested. Because you just started seeing a new pdoc he may have not sent something in and triggered them sending you to one of their docs. You have more then enough evidence that are still in treatment and still disabled. When trying to get ssdi you first have to prove your disabled....for them to kick you off THEY have to prove your NOT disabled.
Try not to get super stressed out, easier said then done I know. And do take someone with you at least for moral support. I saw a one of their pdocs just because I was taking an antidepressant and like another person mentioned, was so nervous couldn't answer most of her questions.
Akunia