I have a 1 year old RIR hen. Just this afternoon we found her in the nest box trying to lay her egg. She's very slow and lethargic. She does walk around some trying to poop. Her poop is small and regular looking, but looks like egg yolk mixed in the poo. We brought her in the house with a heat lamp and she just passed a thin, floppy open ended egg shell. She is standing up to trying to pass more poo/egg then sitting down. She drank a lot of water when I brought her into the cage, but its late now and she's not eaten a bite or drank anymore water. Am I doing what I need to? or what else can I do? Thank you in advance.