Its possible it might be anxiety related. Certainly talk to his teacher to see if it also is going on there. Might also ask her how he is doing at school. And yes, if it is happening in both places, then I certainly would talk to his doctor as it is a bit unusual. Many times, a motion like that can be replaced with something like a worry stone.
Sorry that was supposed to be change not Chelan ... it's to early
No medication and his teacher hasn't said anything to me about it. I was actually going to call her today and see if he was doing it at school too. Not sure if it is relevant but his younger brother is on adhd meds. He was never diagnosed with anything like that. Never had behavior problems of any sort straight A student. The only issue I really have is his inability to lose. He gets so upset. There has been a recent Chelan get in his life. My boys father just moved here. For the past 4 years he has been in another state. Rarely called, never saw them, and now suddenly he's down here and taking them every other weekend...
Is he on any medication of any kind? Does his classroom teacher also notice this behavior?