My young GLW often lays slab sided eggs. She's happy and healthy and I'm exhausted from trying to figure out why, haha. I'm hoping it is just her being young - her first egg was a double yolker. My question is what is this semi solid white thing on half of the yolk from this slab sided egg. I just broke open two of her slab eggs, and one was perfect inside, the other had this whitish half on the yolk. Some of her slab eggs have this. It is always only half of the yolk. And when I whisk them for scrambled eggs, I can pull it out because it doesn't mix. Any ideas?