Is this bi-polar?

Most of the time I'm played at 33 1/3 and can't even lift my ass off the chair.

Then there are weeks where I'm played at 78 and I don't stop moving until I collapse from lack of sleep and (probably) hunger, which I don't feel. I get loads done on projects I start and I try like one possessed to finish them before the RPMs change again.

What I want to know is how does the control knob work?!

Don't get it? Then go to a page for young people.