We have a 23-wk old Red Star. She began laying when she was 18 wks and has been a steady layer. We've gotten 2 eggs from her this week with soft/no shells - the last one was yesterday. She hasn't laid today. She is out in her run - not free ranging with the others. She is moving very little and very slowly. I have felt her abdomen and I can't feel a stuck egg. I also chucked inside her vent about an inch and can't feel anything. No diarrhea or blood - her vent is clean. She hasn't eaten much today - her crop is empty. She is very slowly and slightly moving her tail up and down. She didn't react like it hurt her when I prodded and massaged her abdomen. She doesn't feel warm like she has a fever. Any ideas what it could be or what I should do?