Thanks guys. A paramedic came over with my friend to give her a ride to work unexpectedly and checked my noggin out. it wasn't nearly as bad as I had thought it was, but that was mostly from fairly extreme dissociation and wobbliness and head bleeding like crazy.
Physically injuring myself is one thing that really triggers depression for me and I was already in a super low state, and dissociated, so the combined metaphor of self-failure really..hurt alot when I smashed my head.
The last few days i've felt better, I've managed to get mysefl to do boxing forms in the morning and afternoon even if my body is kind of sore. I really need to get on the stretching more. I'm smoking alot of spliffs again and eating more than I should be / late at night, but I also started writing in my journal again (took a few days off of that and that felt kind of shitty), so today, this morning I feel stable and calm. Sore, but calm.