A bit of background. I removed him from his mother when he was five weeks old due to the circumstances he was living in. His social skills with other cats leave a grat deal to be desired. Our adult Birman- a VERY patient cat-finally reached her limit the other day and will have nothing to do with him. He is about nine weeks old. I know all about kittenish exuberance but is this normal? I haven't started his vaccinations yet but he has been given a clean bill of health by the vet and his blood work tested negative. I have not specifically inquired about hyperthyroidism. I will check his kitten food for soybean additives. Any advice is appreciated.