Oh, yeah, big time. And it can change during the course of a single day, too. In fact, all day yesterday I felt bloated and was sure (not really, but kind of) that if I stepped on a scale it would have read at least 250. But for some reason when I slipped into bed last night, and lay there under the covers trying to get warm, I got the distinct sensation that I was skinny - dare I say even petite. No idea why. Right now, sitting at my desk, I'm feeling fat again.