I'm also rapid cycling right now. Thursday and Friday I spent crying in bed. I've been up now for 30 hours and zooming at full speed. I have realized I don't like sleep. I wake up sad or angry, so why not stay up. Reflecting back, I realize that this has been a constant trend. I used to only take my sleep meds if I was up for over 48 hours, and surprise, I haven't taken them the last few nights. It's a dangerous game, if you're losing it, get to the Dr.