I don't know what has happened. One of my 3 week old chicks is limping. I checked its foot, don't see anything wrong with it. It's not spraddle legged. It seems like it's favoring its right leg and the toes almost look like they're curled inward, like it's ankle is twisted. It's not getting picked on or anything, just sits there. Their bedding is pine shavings and always has been. I feel so bad, is there anything I can do or should I just wait it out and see?