Originally Posted by Alana
I get like that when I have a Fibro flare up. I get so tired that I shake, Im achey, Im cold, and feel very heavy....except then I cant sleep.
Yeah, that (although replace Fibro with CFS for me).
But I think it may be due to the same thing you might be having problems with - not enough cortisol/adrenaline reserves anymore. The chills and shakes can happen if you run low (or your blood sugar is low - cortisol (I think?) is what gets the glucose out of stores in between eating). So, this all corresponds to the "exhaustion" theory. I find when I've over-taxed myself, I have to eat often (every 2 hours or less) to keep up my blood sugar, and rest as much as I can.