I can't wait any longer. Where is Old Geezer to answer this one. (Bow eye, fairlead, etc.) He has a great sense of humor and some entertaining comebacks. Seriously, fatigue is a common cause. Caffeine makes it worse. I sometimes get that twitch with lack of sleep or being dehydrated. Drinking plenty of water and sleep enough fixes it for me.
I do custom woodworking to make money. I personalize a lot of stuff by burning initials, names pictures, sentiments... into the piece. Once I was doing a big burning job in a Mahogany piece, and the smoke gave me a twitch in my right eye that lasted about a week. That probably doesn't help you much, just thought I'd share.
