my kitten had 2 vaccines today. he's a baby, he's about 13 weeks old. i know one of the vaccines is for rabies. I'm not sure what the other one is, my mom took him to the vet. when my kitten got home from the vet, he was really energetic, he chased balls and played with his toys. but a few hours after his vaccinations, he started to hide underneath the chair and refused to come out. it's like he has no energy left. he can barely keep his eyes open. he's too tired to run away from us if we pet him too much. he just turns around and faces the other direction. i'm really worried about him.