SuperElectric,

Is your journey posted somewhere in more detail that I can read?

I usually wake up frequently, between cycles, but this is not abnormal. Did you use to sleep more than 4&1/2?

It's not uncommon to have difficulty going back to sleep, but one thing I notice in myself is kind of hyperactivity somewhere in my brain probably which can make going back very difficult. It is known that PCS people have excessive activity in the sympathetic nervous system.

Oddly, eating a lot of calories seems to boost this hyperactivity in me. I doubt it's glycemic index, though I do eat potatoes, rice, and pasta. No, what I'm feeling after my injuries seems new.