My chickens which aren't even a year old, I got them in August last summer, had stopped laying. She is a gold star that has been laying since January. It's been laying HUGE double yolkers probably 2 to 3 times a day. I've been feeding it plenty of calcium and she free ranges all day. I have also switched to Naturewise feed. For a week she barely ate or drank and she laid a super thin double yolker with no shell, only the membrane. Now for the past two weeks she has been eating very well, but no eggs. Does anybody know what's wrong? All ideas are appreciated thanks!!!