[Silver Lace]

Hi and welcome to Yorkie Talk. From what you have said it does not sound as though you need to train your pup. If he is yelping and nipping when you move him he must be in pain from something. I feel in my honest opinion he needs to be checked out by a vet. I hope you can uncover the reason for his behavior and help him out whatever the cause of it. Best wishes and let us know how it goes with him.