Anyone have any ideas what causes chin twitching? It started a few months ago, with several incidents throught the day. It has increased to the point where it is almost continual. When if first started, I felt it most of the twitches. Now I only feel some, and some I don't feel. Co-workers tell me I am twitching and I don't feel it. Ocassionally it freezes in the dimple part of the twitch. The twitching is one small place on my chin, about the size of a pea. I have searched all over the internet and haven't been able to find anything about it. So any information/insight would be greatly appreciated.