Lily, the chicken I've been worried about recently has become very lethargic. She won't come down from her roost in the morning, I have to help her down. I'm not sure if she's been laying eggs, but I've seen her in the nesting boxes. She seems to be eating normally, if a but less. She's been drinking her water fine. She's about 2 years old. She'll just stand in random places in the yard without moving. But she doesn't hunch over like she has a bad egg in her. I don't know what could be wrong? I'm a bit younger and don't know much about illnesses chickens can contract. Please help!