I have a hen that is a year old, Lucy. She used to lay really good but stopped this fall. The other hens have started laying again but she has not. The other day when I let them out I noticed she had a messy bottom. This morning when I went out to feed them she was not eating. She would just sit there and close her eyes. Her bottom is still messy and looks like poop is trying to come out because there is movement back there. What could the problem be? I've never had a sick chicken before so not sure what to do.