Hi, if anyone can help, I would appreciate it very much. I have an old chicken who for the last couple days hasn't been able to use her legs, they're just curled up, and is not eating or drinking. I have googled and have come up with the following: Mareks (but she's very old) Riboflavin deficiencey (I've been syringing B vitamins down her throat, but she isn't improving) Botulism (it has been raining, but it is cold here atm) Her eyes are bright, she has no discharge. She may be fluffed up a bit, it is hard to tell. I have two other older chickens who are fine, and three new chickens (about 10 weeks) who are fine as well. I can't see any injuries on the legs. Any thoughts? Is it just her time?