I have the same cluster of diagnoses going on as you. MDD, PTSD, OCD, ADHD, and BPD traits (or EDD). I'm confused as to what is really the correct diagnosis, if any.

I was reading all I could on BPD and very freaked out by the negativity, too. But, I know myself and I am not any of the terrible things. This all has come to light over the past few years for me and I am in my 50's. I was never aware of any of these illnesses before!

An incompatible, intimacy issue with my husband pushed me to all this. I am obsessed over one thing and that is all that triggers me. So, I may be different from people who have these issues across the board in their lives.