In the last year I have developed an uncontrollable eye twitch, in which my eye just sort of vibrates for a minute. I notice it happening more frequently when I'm under stress. It doesn't hurt or anything; it's just inconvenient. Does anyone know about this?

Normal. I have several. They make you feel awkward, but they're not all that noticable to others.
that's a good question though, no one's ever said anything to me about it or pointed it out. I've never tried to watch in a mirror as it shakes. that's what she said.