Ok, ive had chickens a while. Ive read a ton of books and articles on all kinds of ailments, etc. Tweedle is a 2.5 year old Wyandotte. I first noticed something amiss when i checked on the flock and saw a half crumpled egg shell stuck to her butt feathers. I took her and checked closely. I found the other half of the softish shell inside her and gently pulled it out. I tucked some of her cloaca back in, as it was partially hanging out, but not a huge amount. I put her in a dog crate overnight, and by morning, her vent was more normal looking. I put her back with the flock, but she was lethargic and not eating/ moving around a lot. So i put her back in the dog crate. This was 2 days ago. She laid another egg in the crate, but it was a broken mess. Today, i trimmed the rest of her yucky crusty butt feathers. Her bum is red and sore looking. She has not been pooping a whole lot in the dog crate, which is covered so it is dark in there, to stop her from laying. Today, i let her out a bit and followed her around. She drank a bunch of water, but was not interested in food. Then she just laid down in dirt. So i soaked her in warm water for about 20 minutes, as i read to do to relax them if there is an egg stuck. But i dont think an egg is stuck, as she laid one just 2 days ago. She is back in the dog crate, resting with a heat lamp. Her color is good. Her eyes are clear. She is calm, and seems to be enjoying the heat lamp, as well as the warm bath. I just dont know what it could be. When she poops, its small, but normal consistency, and seeing how she hasnt eaten much, i understand not having much to poop out. I tried scrambled eggs... she just pecked at them... same with corn and her normal layer feed. Im not an amateur, and ive done my homework, so i really need some expert help with this one.