For a long time now, five or seven years, I keep bopping my head back and forth, like if I were in some stupid rock concert. I don't know why I do this but lately I've realized its out of my control and I can't stop it, is this a symptom of some disorder. In addition, this gets expressed in many odd ways, I sometimes start pacing around for some odd reason but the weirdest part of this is that I'm usually daydreaming when I do this, and this is constantly happening, not just at convenient times but when I'm working, when I am relaxing, just about anytime. I have been told its because I am anxious, but seriously I do not believe I am anxious at all, especially not all the time for the last seven years. Can someone help me explain this problem, I feel like I am starting to hurt myself because of this and it needs to stop soon without making me feel bad.