So this morning the chicken came outside the pen, ran to her spot on the yard and all wa normal then a couple seconds later she was limping kinda bad. I'm assuming she jut sprained it maybe.... I live in thr city with this chicken (limping one) and two other 5months old chickens so I don't know if she could have gotten a disease .. She's won't really move right now I HAVE NO IDE WHAT TO DO .. Should I just leave her alone ?
Check the bottom of her foot carefully for a dark spot and look up bumblefoot if you see one. Feel her leg and foot for any warmth or swelling. If you don't see a cause, sometimes they will respond to rest. They can get simple strains or sprains like anyone else. A darkened place for a few days, or even a few weeks, may be needed.