My mood swings like crazy, and I'm usually a calm, quiet person, but lately I've been snapping for no reason and have even been deeply depressed for just 3 days. And then my mood totally swung the other way, and I became extremely happy. I sometimes have that on-top-of-the-world feeling and it disappears just as fast as it came and I become all blue. So, if I'm not bipolar, this means that I'm getting there one way or another.
So, yeah, rant aside, I'm a very moody cookie...