Lately my chicken has been bobbing her head weirdly. She's been like cocking it to the side or just bobbing it up and down. I'm not sure what she has because this can be a sign of a lot of diseases. When she first started doing this,she was very lethargic and refused to get up. It was rainy and she was drenched in the rain, trying to sleep. She didn't even bother seeking shelther. However, she soon gained back her apetite when I forced fed her some food. She's a bit better now and is eating again. She still has the weird head bobbing motion though. Can someone explain the head bobbing?