I've done the "fast and flush" and had a pretty strong physical reaction to it...I was freezing and shaky just like you said. (I also threw up a few times...hope you're past that danger point! But, if not, well, it's sort of normal.) I found that vegetable bouillion (sp?) was a good friend to me that night....
Sage -- just continuing the glamour of the thread
Relax. Appreciate. Be calm. Laugh. Enjoy. Be secure. Be loving. Be loved. Don't personalize. Don't ASSume. Accept. Be grateful.