I've suffered with MH problems since I was a teenager (now early 40s). When I was in my early 20s I spent 2 months in a psychiatric hospital. In one of the sessions with my psychiatrist at the time he said (his exact words) 'you're not insane but you're severely traumatised by previous events in your life'. Since then I've suffered bouts of suicidal depression, had countless courses of CBT but I'm still not what I'd class as 'well'.
I've recently been assessed as probably having borderline personality disorder (trying to get a formal diagnosis but it's like trying to catch water with a fishing net) but I've been wondering about the psychiatrist's words. As I understand it c-PTSD has significant overlap with BPD and it's made me wonder if I should explore this further.