I have a 5 1/2 month old Olive Egger pullet. She has been limping for about a week and the last 2 days has started curling her toes up and she can hardly get around at all. Its been about 10 degrees or so for weeks. After I noticed her limping the other chickens started ripping her feathers out and bullying her. I brough her in so she could heal. She is drinking and eating, but has lost a considerable amount of weight and she seems worse. I see no signs of bumblefoot, and if theres a break I cannot see it. What could it be and how do I help her?!?!