Re: Body and head shake/twitch like symptom
I think it could, especially if you were a heavy drinker and a smoker. Changing any hardcore habits and addictions would be a major stress on the mind and body.
You're going forth with a huge undertaking, but it's going to be in your very best interests for the rest of your life. The rewards will be more than you can imagine at this point.
Eventually, things will even out as you tweak your schedule to what can suit you best. If 10 is too early for bed, try 11...but still get up at 8 or 9.
Are you working at this point? going to school?
It's all a matter of perspective!