Why Is My Kitten So Hyper?

My kitten is very hyper she’s never like this before. She has had diarrhea, cold sores and an ear infection since i took her in for shots on tuesday. I have noticed her scratching at the door to go out constantly but when i open it she just runs back into my room or lays down then goes right back up again. I don’t know what else to do

Cat Behavior Question? Answered by: Lola