I have fourteen Red Sex Link chickens, and one of my girls a few days ago has lost all of her feathers on her bum. At first I just thought that because she is around 1 year of age she was molting, but now I am really starting to worry. She keeps pooping on herself, and when I was cleaning her I noticed that its almost as if her insides came out! Like her intestines ripped and came out from her bum. I've also noticed that some of them have blood on their eggs when they lay. Could this possibly have been caused by this? Im just wondering if they are having a hard time laying and ripping their insides out?? Help!!