I am so sorry about your girl, tulie. I think I might have an egg bound chicken, myself. I went out there at six o'clock in the afternoon, to check on them and make sure the water was full and everything, and she was sitting in the box, panting like she was getting ready to lay. Well, when I went out there an hour later to let the girls out of their run to free range a bit before bed, she was still in the box. She would get out every once in a while to get some water, but would go back in. I could hear her constantly scratching around trying to get comfortable in there. Occasionally I saw her squating on the floor of the coop, then she'd go back up in the nest box. It was like she couldn't make up her mind about where she wanted to lay. A little bit later the other girls went in for bed and she was on the roost, her vent pulsating and her panting and everything. I went to go check on her about half an hour ago and she was in the corner of the coop sitting on the floor.
She's done this to me before, though...I don't think it was this long. I hope I don't go out there in the morning and see scrambled eggs on the floor of the coop! Though, I think that would be more of a relief than no egg at all I'm hoping everything is ok. She's my favorite, and these are my first chickens.