My 3 year old chicken is dragging her butt around. Tail feathers down and walking slow. She has trouble going up and down the ladder into the coup. She is eating and drinking well and her comb is a good color. I can’t feel anything around her vent so I don’t think she is egg bound but have never had to deal with an egg bound bird so am not quite sure. She diesnt appear to be injured at all. I would appreciate any help or suggestions.