My 15 week old yorkie had vaccination for Distemper-Hepatitis, Leptospirosis, Parainfluenca and Canine Parvo this morning. He was playing very well before the vaccination. After vaccination he is less active. Although he still eats and drinks, I have to prompt him to get his new toy so I can see if he is limping (thanks, God, he is not limping!). He can walk fast but he is unusual in a way that he does not run around the house. He just stays with me and prefers to sit all the time. Is this normal?
Anything I can do to help him?