Wee has been increasingly doing some odd things. I've spoken briefly to his teacher about it, and she's seeing it, too. Is there a way to distinguish a tic or an involuntary movement from a stimulant or just a habit? In situations where before he would get frustrated or angry, he rubs at his face, back of his head, and ears. As his teacher says, like he's trying to rub them off. Really intense rubbing or scratching. While watching tv or otherwise "dully" occupied, he often will "show his teeth" - like he is clenching his teeth, but also exposing as much of them as possible - over and over and over, and seems to be oblivious to the fact he's doing it. The noise levels have been increasing, also. Just random noises. We've been wondering for a while what we've got here....any ideas?