toby did this as well........ was it the DHPP?(sp?) shot that he had???..... toby did the same yelping and crying, adn he was also moving around a lot like he couldnt get comfortable..... finally he went to sleep and he was fine the next day, a little bump might stay on the back of his neck for a week or so (this is normal).... i didnt give toby anything for it (im not mean really, i just dont like the effects when I take benedryl, i certainly wouldnt give it to my baby.... but thats only because it makes me feel like Sh*t when i take it)....im sure hes fine, if you want to call again go ahead, but emergency vets are expensive and from what i hear this is a fairly common occurance after they get shots... dont worry he will feel better