Please can you help? My chicken has been quite lethargic and sleepy for a couple days now she just sat there when i went over, the other 6 girls have been running around and playing shes not interested.she has her tail very down and looks very puffed up swollen sort of thing. All the girls are around 31 weeks. She has always had a wonky tail her body has always been outaline but has never been any different play wise to the other girls. IM very concerned about her what can i do. Louise.