I feel you brother, though I've always been like this.

I find that as I have sleep less I feel better - do you get this?

I have read several studies indicating that sleep deprivation boosts various neurotransmitters which would make you feel better overall.

Prior to my injury I would normally sleep 11 hours a day, and when I cut this to 7 I would feel a bit tired, but generally a lot better for a few days at least until I really wore myself out.

I find that after period of stress, the first nights sleep is really long and I feel like CRAP afterwards, though as I do this repeatedly for several days my brain appears to readapt.

After my injury I was sleeping 13, though recently since starting on my SSRI (Sertraline) I have been waking up after 9-10 and just feeling like I really want to go do stuff and that sleeping is a waste of time. I actually have to force myself to go back to bed haha.