My left lower outer eyelid has been twitching for two days, and I am sure it is due to stress, but I mean I am always under stress - as is everyone I guess. I am under a weighty deadline and I'm trying to sit here and write and concentrate and my eyelid is distracting me every few minutes. Is there a way to get it to stop doing this?

Thankfully it isn't visible to others as I have established by staring in the mirror and yelling KNOCK IT OFF YOU ASSHOLE at my own eyelid.