Still keep being amazed that, over the course of four years, I went from physically unable to do anything other than lie in bed and go to the bathroom, to almost pre-crash functioning. And I got there by identifying around six diagnoses, all of which had my doctors completely baffled. Each time, I figured out the diagnosis, had a clinician confirm it, and then laid out my treatment plan. Fucking hell dude. I'm annoyed that I had to do all the work myself, but very proud of myself for having done it.
