I uncontrollably play air drums or tap drum patterns with my hands and feet any time I'm idle. Like, idle for more than 5 seconds. If my hands are busy, I'm kicking double bass drum patterns with my feet. If I'm walking, its air drums or pseudo beatboxing quietly. It never ends.

Actually, that's not true. It does stop sometimes; only when I'm in a severely distressing situation or horribly depressed. That's how I know my shit's fucked up; the drums stop. :(