Hi. My 11mo old hen (easter egger) hasn't been eating much for 4 days now. No eggs since then either, usually 1 every 2 days. My other 11mo old hens (RiR) are fine (eating like there's no tomorrow). This EE is moving and perching and drinking. Her crop looks not empty. I'm not sure if it's egg bound or something wrong with her crop. What seems to be the problem? Thanks.