I have 3 chickens and my BR started laying a couple of weeks ago. She laid 2 eggs in two days- one was small with a thin shell & the other one looked like a normal-sized egg. Then a few days later she wasn't as active & her loud morning clucking had stopped. Her comb wasn't as red & was wilted over a little. A few days later her comb looked better and she was much more active. That was 2 weeks ago and we haven't had any eggs since! Any ideas or suggestions?