I have a small flock of leghorns and white rocks. Lately, some of the eggs have fluid (looks like water) in the egg. At first we were boiling them and thought the shell had a crack. But the other day I cracked one frying and it had water in the egg. The yolks are having trouble staying together and that one with the water had quite a bit of blood in the egg. What could it be. I have wormed them now, but if it isn't that, what?