I have a 2 year old plymouth Barred rock hen. She just went through a really bad molt. Her feathers are coming back in nice. She hasn't laid an egg in over 2 weeks and has diarrhea. She is eating and drinking. No breathing problems. But in the morning when I go to clean the coop out it's soaked in diarrhea. She isn't walking funny and her vent looks fine. Help! I don't know what to do. My other 2 chickens are fine and laying.