My chicken that is about a month old isnt being herself! I turned her light off earliar today and I came back and checked on them and one of my chickens was sitting in the middle of the cage all fluffed up and sleeping. I went to pet her and usually she perks up or jumps or something but she didnt move. Shes breathing really heavy and her heart is beating really fast and shes in my lap right now and wont open her eyes. I dont know whats wrong, I feed them every day, change their water every day, and always keep their cage super clean.. what could be wrong? is she not ready for the light to be turned off? Earliar she seemed like she was really hot so I turned it off.