Hey there! I'm the new owner of a toy parti yorkie. He's 10 weeks old and 12oz is that normal? He seems very healthy and adjusting well. I have a small concern about how much he scratches. He has done it since I brought him home 2 weeks ago. He digs behind both ears to the point of crying and he scratches with his back legs on both sides of his back side. He's been bathed with oatmeal type shampoo for puppies and deflea from the vet but he is relentless with it. He'll stop midplay to scratch. There's no scabs or dry skin that I can see. Is there anything I can do for him? Thank you!