that sounds like exactly what cody is going through. He had his second distemper this morning and it made him really tired (slept pretty much the rest of the day) he didn't eat his lunch or dinner, but he had some treats in the afternoon and he threw up on me (yuck) around 9 or 10 tonight, all the food was undigested
I hope it was the shot and that he'll be better tomorrow because I'm really worried about him