Is she swollen?Need help probably tonight or first thing in the morning my leghorn, "Chickles", a white one is in trouble and she may be a down she's going to spilling out what seems like egg on the inside of her without a shell.
I thought hens were just eating her a get seems like her reproductive system is in trouble.
I have a hen with "water belly" at first I thought she was egg bound, but that was not the case.
in doing research on how to help her, many sites suggested the first thing to try is an epson salt bath.
Look on you tube for video, My hen seemed to like soaking in the warm water,. (I thought it was weird)
If she has something stuck that may help her... or at least clean her up so you can look closer...
Good luck....