Shakin all over

Last night, I called my CrossFit partner to let him know I could not swing the 5:45am training time as I was feeling kind of beat up ... I figured I had just pushed too hard that morning. But when I went to bed I started shaking - literally. I believe it was a combination of fatigue and the flu. It took a good 15 minutes for it to stop. Bone rattling shaking. How are you today?