Welcome to BYC. The person who started this thread has not been online for 5 years. You might bet more looks and responses by starting your own new thread with as many details as possible including age here :I see it has been 6 years since the last post on this. I have a hen with the exact same symptom. Seems just fine except one foot is curled up and seemingly paralyzed. I fear Mareks. Did your whole flock end up getting sick?
https://www.backyardchickens.com/forums/emergencies-diseases-injuries-and-cures.10/post-thread