As the title says, I hurt my poor little 11 week old kitten. I was coming out of the bathroom and had no idea he was in there too. I closed the door and wondered what was stopping it from closing until I heard him hissing. yip, I jammed him against the door and the frame. I feel so sick and shakey, my poor Alfie cat. 
He seems fine, this is his usual mad hour and he is running around as normal. He doesn't seem to be in any pain and I have checked his ribs. God I'm such an idiot!