I have a 1 yr old Comet/Red Star hen that has been laying very large eggs ever since she began laying at about 5 months old. Over the weekend she became very quiet, stayed by herself, puffed her feather up and was pooping runny, smelly stuff. I washed her bottom off and saw that there was a piece of shell about the size of my thumb sticking out. Took it out, a tiny drop of blood. Saw that she was eating and drinking and left her alone. Today, she did not seem any better. I gave her some warm oatmeal with canola oil in it (all I had) which she ate, poured mineral oil on her vent-seemed to go in with no problem, and put her alone in a dark crate with some water tonight. Anything else I can do? Thanks for any help!