Twitchy Eye of Doom

I've been experiencing the twitchy eye a lot of recent.  I used to have twitchy eye all the time in my previous job in England but I haven't suffered from it as much in Australia until just lately.  I've never really been sure what actually causes the twitchy eye; whether it's stress related, fatigue related or simply a random twitch.  All I know is that it's very annoying and possibly makes me look like a fruit loop.  I think it knows that I'm writing about it because right now the twitch has gone into overload!  Stop twitching, eye.  I suppose it's better that it's twitching in the privacy of my own home rather than out in public or at work or something.  I wouldn't want anyone to think a) that I was crazy and possibly plotting to kill them or b) that I was winking at them.  We all know how much trouble a rogue wink can cause!  I'm sure a lot of us experience the odd eye twitch once in a while.  I've seen Mystical Roo's eye do it and I've heard colleagues complain of similar problems.  I guess it's something beyond my control so for the time being I'll have to put up with the eye twitch and hope it doesn't hang around too long.