Hi, thank you for allowing me to join BackYard Chickens! I have 5 RIR and 2 Black Sex Links. About a week ago I noticed one of the hens had watery poo but everyone seemed fine, then 2 days ago the other hens started attacking the one! It turned out she was the one with the bad poo. We've checked her for being egg bound and she isn't but now today is very lethargic and doesn't want to eat or drink. What all could be wrong with her? They are all 1 1/2 years old. We did have a bad problem with mites a while back but that has been cleared up finally. Just not sure what might be wrong with her! Thank you for any help you can give!!!