Absolutely! Here's the thing to remember: Days when you feel like this have very little to do with the junk in your trunk, and more to do with the junk in your head.
My friend calls them fat head days. I think it's your brain adjusting to the change in your body. For me, they get less frequent as I get smaller, but I don't think they ever go away altogether.
I suppose we should remember that the next time we want to thump a skinny person for saying she feels fat, huh?
Hang in there - your brain will get back in line in no time.
cheers!
paula