I have 2 barred rocks who are the same age. One is laying just fine. Really nice brown eggs. But the other is trying to keep up with the flock but falls over on her side and sits down alot. She looks inbalanced. Like she is carrying a weight on one side of her body. Recently (Just before this started) I saw really large white eggs in the coop floor. I just assumed my Donald duck is really Daisy duck. But I locked my hen in yesterday and that really large egg the duck laid was there. The duck can't get in. So obviously my barred rock laid it. But these eggs are huge! About three days ago is when I noticed her walking funny. One day I got 2 eggs from the coop. She must have laid one in the morning and one at night. What do I do now? I have her in the house laying on a pillow in the dog crate. PLEASE HELP!!