I have a two week old chick that suddenly can't walk. It seems to be the right leg/side of the chick. It won't try to stand on its good leg at all. The right leg is out to the side and so is the right wing. I've moved the leg and felt for inflammation and checked for pain, and I'm finding nothing? I don't know what to do? The chick was fine up until yesterday. Could it be a back injury?