I have a young chicken that is about 3 months old. For about 3 days now, she’s been acting weak and it seems like she doesn’t want to move around much. The others I have around her age that she has been kept with all seem fine. She is still eating and drinking on her own, but she’s keeping her feathers ruffled, her tail feathers are slightly drooping and she just acts weak. Sometimes she just wants to lay in one spot and other times she is up and walking around (very slowly). There are no noticeable injuries to her. She is beautiful and very sweet I really don’t want to lose her. My 3 year old has named her Sky and is very attached to her. Does anyone have any idea what could possibly be wrong with her and what I can do to help her? Thanks so much for all your help.