My boy recently started chattering his teeth in extremely fast little moments. It’s normally only 30 seconds or so and he does about 4 or 5-1 seconds chatters. It literally sounds like a woodpecker. I feel like he only does it when he wants attention, so I think it’s a new addition to his anxiety/brat-ism. It doesn’t seem to hurt him and he has no other changes. I’m more worried about his teeth than anything. He is 7 years old. No health problems.