Holly, how old is your kitty? How was he hurt? It sounds neurological in nature. I've seen kittens back up like that when they are frightened but not spin in circles. Could be a brain tumor depending on his history. You really need to take him to the vet for a good exam. I hope he gets over whatever this is. Good Luck!
The symptoms are sometimes typical of brain or neurological damage,
What exactly is your question?
how was your kitty hurt?
did he have a head or spinal cord injury? was he seen by a Vet than or now?