I don't know if this is a serious question or not... but...

Twitches almost ALWAYS come from stress. When I get stressed out for an extended period of time, over things that don't SEEM like they would stress me out; I tend to get a twitch here or there.

If you're not going through ANY increased level of anxiety or stress, it could be a potassium or magnesium (or other) mineral deficiency. Relax and take a multi-vitamin, it will likely cause the problem.