I have a golden buff hen who is almost one year old and had been consistently laying a huge(3.75 to 4.oz) egg every day. Today I found a soft shelled egg on the poop board with a hole in the top of it about the size of the head of a tack. The size led me to believe that it was my golden buff. Sure enough she has had some strange poops........very watery and I think clear then one that was light yellow with some solid greenish. She is definitely not feeling well, as she did not eat the treats and when she finally went outside, she stayed on her own and did not go with the other girls. They are all in a large pen so I can watch them for behavior changes. She wanted to be in a nest and I have seen her drink water twice. She is not one to go broody so combined with her other symptoms, I think she is sick. She did lay and egg yesterday that was perfect. What should I do or look for? Help please