hello, i have a susex large breed hen. she is one year old. tonight she laid an egg on the ground at night and it had only the membrain no shell. she then drank alot of water wandered around and then expelled a yolk, no shell no membrain. she looked very uncomfortable. she then drank more water. the increased drinking of water has gone on for 3 days. i thought it was a new habbit she has picked up. but now im not sure, this behavior has been always at night. please help. from tegan.