I am fairly new at raising hens and JUST hens for their eggs. I have a young (maybe 5 month old) hen that was doing fine, laying her eggs and than totally stopped laying and just sits and sits all day long until I lift her out. She will than get water, eat a little, Run around for about 15 minutes outside the coop and will than proceed to go BACK on her nest of choice and sit and sit and sit with never laying an egg. She appears completely fine. This has been going on at LEAST 4 weeks. Not sure what to do about this girl!