My 24 week old buff Orpington girl has been in the coop, not the run with the others all week. She won't eat or drink. She hasn't layed yet. She was sleeping in the nest boxes today. She sits in corners and doesn't walk unless you move her. Her wings hang and she sits on her knees. No symptoms otherwise or bleeding. Very lethargic. Just started turning red in the face a few weeks ago. Lowest in the Peking order. The other girls gave her a few pecks and then ignored her when I out her back in with them. Please help!!