I have a hen who is bald on her breast/underside. She was falling over, spreading her wings so I brought her in, put her in a dog crate and heated her up. She's eating and drinking. Her poop seems formed. I'm feeding her cottage cheese and yogurt, pellets, lettuce (or other greens) and water. She seems to be eating ok. She hasn't laid an egg for 6 months but was fine until recently. I was advised to check for mites and offer an antibiotic if no mites. She doesn't seem to be able to stand up straight... I tried to put her back in the coop with her sister but her well sister wanted to peck her so I brought her back in the house. I'll have to reintroduce them too. Any ideas?