I just got 2 new young chickens and for a month they layed perfect eggs and now one is laying the rubbery shelless eggs. Her butt is all messy too and I tried to wipe it off with warm water but it seems she might have runny stoll also. She eats and acts normal when I let her out in the grass but otherwise just sits around in the coop.I give her a good layer food and also the oyster shells and corn. I am also worried about her as my chickens are pets. I only have 3.