Hello, I have a 1 1/2 year old EE who is not laying eggs. Almost every day she goes into the coop and acts like she is laying, but comes out a little while later and there is no egg. She is not acting strange at all and this has gone on for the last 2weeks. She also had damaged feathers for almost 4 months and has been dusted for mites And the coop has been treated. She is the only hen affected and they sleep close together at night. Any idea what is wrong?? ETA: the coop has been completely cleaned TWICE and we have dusted every nook and cranny and just switched from hay to shaving yesterday. A flock of three big hens, two little Cochins, and a polish Pullet share the coop and non of the other are acting strangeexcept the polish, who has been a nut since we got her. Extremly chatty.