Welcome to BYC. You will get more replies if you start a new thread of your own on the emergency forum here:
https://www.backyardchickens.com/forums/emergencies-diseases-injuries-and-cures.10/post-thread
Pictures posted on hour thread or a video of her walking uploaded to YouTube or Vimeo with...
Chickens injure themselves from jumping from roosts, or from a rough rooster. It might be a sprain. Look for green bruising, swelling, cuts, or redness along the whole leg up to the hip. Look for a bumblefoot scab on the footpad. Have you added any new birds to the flock recently? Is she holding...