Hi and Welcome to Yorkie Talk.
There are many things that may cause shaking, he may be cold, or may be in some kind of pain or distress due to tummy, liver or kidney problems, or a number of other things.
It would be best to take him to a vet for a check up. That is the only way to find out for sure and start treatment if he has some problems.
Good luck, and give us an update when you can. |