Hi, I'm new to byc and I have 5 hens, all egglayers. Yesterday, Cinnamon, a 30- week old hen was romping around and playing just like the other chickens but today, she seemed sick all of a sudden. When we let her out of the run to free-range, she was barely active compared to the other chickens. Her tail is droopy and she starts to fall asleep when standing up and doesn't eat much or drink. She also has a little diarrhea. We separated her from the other chickens and gave her a light, food and water. Any suggestions will be helpfull. We feel so sorrowful looking at the poor girl. Please help!