My hen was acting sick yesterday evening. I picked her up and egg yellow squirted out. I took her in and after applying a warm cloth she passed a rubber egg. I watched her for a while and put her to sleep in the coop. This morning she's free ranging and I added vitamins to the water. She pooped white liquid and is acting normal. Any suggestions?? She is 24 weeks and has laid 5 eggs with hard shells. I think part of it is that I overfed treats.