I have 5 Ameracauna hens that are almost 6 months old and have just started laying. Yesterday while installing a new coop door one of the girls just passed out on the ground right next to me! She literally just fell over, eyes closed, wasn't moving for about 10 seconds and then another hen made a noise and she popped right back up. Then again today I was outside with them and she fell over again! After I saw her fall over I watched her closely and she kept closing her eyes like she was falling asleep. Even when she would start walking around her eyes were still closed and then she would stop walking and her head would start to droop and she looked like she was about to fall over again. I have never seen any of my girls do this and it's making me nervous! Does this hen have narcolepsy?? What should I do?!