I have a chicken that has not been moving for a few days. she keeps her eyes open and she holds herself up but she looks stiff, when you nudge her with your foot, she stumbles or topples over. Does she have Coccidiosis? If she does, is there anything I can do? This year has been very bad for my chickens, could it be something related to the weather changes? I have been feeding her water but she will not eat anything. Is it too late?