My little bantam is not herself. She is inactive and lethargic. She is hardly drinking and eating. Her tail is down and shes dragging her wings. At times, when it gets hot, it seems like she has trouble breathing. She tilts her head up and pants so hard her whole body rocks. I noticed this a couple days ago when she had finished being broody and was walking around the yard a little again. She wouldnt run and then she stopped walking around altogether and would just sit still in one place. I put her in a cage by herself and have been feeding her regular feed and yogurt. She rarely moves. She does have a mild case of lice, but I doubt this is what is causing her change in behavior since our other chickens do as well and have not been acting any differently. I have been dusting them with Permectrin. I dont know what this means or if it is even pertinent, but her eyes also turned from gold to an orange-red color. Please share any ideas you have as to why she might be acting this way. Thank you in advance for your help and advice.