This is going to sound totally made up, but there is such a thing called Restless Leg Syndrome. I just learned about it this year because a friend of mine has it. Here is the foundation's website: http://www.rls.org/NetCommunity/Page...d=178&srcid=-2

I don't know enough about it to say if it sounds like what your situation could be, because I know a lot of people (especially anxious people!) do a lot of bouncing of the leg and similar habits. Just thought I'd pass on this information just in case...