Dear AllI'm beginning to worry about this movement of my left thumb. Several times per day, the thumb will suddenly "jump", move 2 or 3 times in a second or two, and then stops this jerky motion. There are days when I get that often (like today, every 30 minutes or so maybe) and days when it's much less often. No weakness, no visible atrophy. Started about a week ago. Has anyone else experienced teh same thing? Is more a tremor than a fasciculation? Any experienced thumb twitcher out there?Thanks,
May