Hi I have a 4 year old mixed breed chook who sits around a lot.I noticed when she does stand or walk she limps. I have felt around her legs and checked her feet but she seems fine? She runs for food of a morning so she's not super bothered by it, but will choose to sit and eat and lay around all day if she can. I was wondering if there is such thing as maybe chicken arthritis? And if there is anything I can give her to help? Or if it sounds like something else is wrong? Thanks for your time!