HI all I was hoping for some advice. I have four chickens which I have had for a couple of years and all have been fine up to now. Yesterday when I was cleaning them out I noticed one of the seemed very lethargic and wasn’t to interested in the corn I treated them to. Today she seems worse, just sitting in her pen, we picked her out and she had some water but proceeded to throw it back up!! She ate also a bit of lettuce but looked so tired we put her back to bed. She was really wet, especially under her chin and also she felt really warm and I am sure she has diarrhea. All other 3 chicks are fine. I can’t separate them and I am at a loss what to do! Please help!