I have a silver laced wyandotte hen who is about 15 months old. About 4 or 5 days ago I noticed her starting to go in and roost really early. Or if she wasn't roosting, she'd go under the hen house and just lay down for hours. I noticed her drinking a small amount of water and a bit of food. She began to get more lethargic and drinking and eating less so I isolated her in the barn in a dog crate. There she just sits or lays down. I have been giving her electrolytes mixed with vitamins & minerals, a probiotic and started her on an antibiotic yesterday, but she is still very lethargic. If I let her out of her pen to wander a bit, she just goes and finds a dark corner and sits there. She is barely eating anything I offer but does drink some water. Her behind was very messy with poo, which was not real runny, but was stuck to her feathers. I gave her a bath tonight in epsom salts and gave her some medication. She was roosting in the cage at night, but tonight she is just standing on the floor, and won't even lay down. She does poo some, and it is runny with white & gray in it. Her comb and wattle are nice and red. She does appear weak when she does stand and only walks around for a few minutes before laying down again. Its a case of fine one day..and sick the next. Is anyone familiar with this type of thing? There are so many diseases on the internet with these types of symptoms that its mind boggling. There has been no blood in her poo. Any suggestions would be greatly appreciated!!