It's hard to get to sleep, even harder to get out of bed. Can't focus, and at the same time, you can't stop obsessing over little nothings. It's like walking through an early morning fog, without enough visual stimuli to keep your mind occupied. At least that's my experience.
You'll start to normalize before too long. You're off the juice, so you've done your job. Your body, and your brain has to do its job now. Your biological processes, your brain chemistry, need to readjust. They have to start correcting themselves. So try to eat right, stay hydrated, get some exercise, and get out of the way.
"You did your job, now get out of here and let me do mine, all right?"
-Casey Jones, TMNT 1990