Mr T started having what looked to me to be a seizure. His head shakes back and forth really fast. I read some of the other questions here about seizures but he seems to only do it when he gets in trouble. Sometimes when I scold him he does this. He's never does it any other time. He's 3 yrs old and didn't start doing this until about two weeks ago. He's really smart and gets away with alot. Could this be something he's doing on his own? Should I be terribly concerned. I do baby him when he does it cause it scares me. I'd hate to think he has me completely in his paws.