My 1 1/2 year old chicken was found outside the coop the other night dropping her behind and was lethargic. We brought her inside and she had a very watery yellow colored poop (pic below). I thought egg yolk peritonitis or possibly egg bound. It’s now day 3, she’s eating and drinking like crazy, preening herself as well but still walking with her butt down. We’ve been giving her warm baths, massaging her abdomen, and putting her in a dark area inside the house but still nothing. She looks really good except for when she starts to walk. Any other possibilities that anyone can think of?