I recently got four backyard chickens for quarantine, recently one of them has started to limp as she runs. She can put her weight on it when she stands but when she runs it's sort of a skipping like gallop.comparing her nails to the rest of the chickens her nails are a bit long and I'm not sure how should I cut them or file them? Also one of the chickens has toenails in which that are very short and curl up but they've never been a problem since she's had them like that since she was a chick.