My Jake has always been a shaker. I was so worried about him when we first got him thinking he was shaking because he was sick. His head shaking reminds me of a person with parkinsons disease. The vet said she thought he was fine but didn't know why he was shaking, so after awhile and he was still thriving I didn't worry anymore (he is 6 years old now). Sometimes he doesn't shake at all, but then other times (especially when he is excited or nervous) his head shakes really bad. It is just his head, not his whole body. It is good to know He isn't the only yorkie that does this. But to the person that thinks it is only in small dogs, I guess there is exceptions to all rules, Jake is 15 pounds! Huge
