That the part of me that feels could wake up and have to go through the experience of realizing that who I am has been lost to brain damage.

Okay, that's freaky. Only a little freakier than "The child I was has been replaced by an adult", but point taken.

Right now the DSM allows a depression diagnosis two months after a traumatic event

Is this supposed to rebut my objection? I don't see where you're going with this at all.

If medicine when you wake up if anything like it is now, after a couple months at most you'll be able to say "Doc, I feel utterly miserable" and the doc will answer "One box of magic future antidepressants, coming right up!", not (only) "Well duh it's future shock".

Have you ever looked into how incompetent and horrible medical professionals and treatments can be?

I have a pile of statistics if you want a shock.

Only in specific cases (medical errors, psychiatric hospitals, nursing homes). Can I haz stats?