I've gone as much as 5 lbs up or down in a single day and there AIN'T NO WAY that is muscle, fat, or anything but water, crap, food, and hot air. I just hit an alltime high of 213 today, but do I weigh 213? Almost. I poopid, didn't drink or eat much today (my lady and I are sick and been in bed two days) and decided to work out anyway.
(Weird News Dept: I had one of my best workouts EVER! Go figure...)
Regardless, I was 211, 209, 209, 210, 212, 211, 213 this week, so I weigh 210.7 lbs.