My eyelid has been twitching my whole life. Honestly, I think eyelid twitching is in a category of its own. Myokimia, I think it is. I have had eyelid twitching for weeks, to the point that it's been embarassing. For me eyelid twitching is always related to sleep deprivation or anxiety, since I was a little girl. I remember asking my mom about it, and she said "it's because you're tired" and I believed her and never thought about it again.I think it's the most benign kind of twitching out there that pretty much everyone has experienced, so I would try not to worry about it, and I believe it will go away.