Hello, we have 4 hens, all on the same diet. One of them has a problem in that the yolk comes out loose and then there is the white membrane which I assume is unformed shell that we have to pull out of her. This has happend one time about couple of months ago and again yesterday and today. I already pulled out part of the membrane and she is now in the nesting box. She waddles and her wings are down. Any ideas how to help her? Thank you.