Hi all I need help asap. I have a 6week old chicken that is unable to stand going on five days. She is eating and drinking fine. She doesn't seem to be ill in any other way and none of my 40 other chicks are ill. I first thought mareks but I would imagine that my 40 other chicks would have symptoms by now. She doesn't appear to have vision issues she has reflexes in her feet when I touch her foot. I am at a loss on what to do with her or if it's time to cull . I can't seem to upload a picture but her hocks are both red but I don't know if they are red because that's the problem or because she hasn't been standing . Please help!