I noticed today that one of my Hens was acting lethargic and I hadn't seen her come down from the roost. I left her be for a while but when i gave the birds their treat she finally came out but was very slow moving and tired-acting. not really pale or anything but just wasn't acting active, like normal. I looked her over and i couldn't find any wounds but her belly did feed "full" and soft. When i was feeling around and lightly pressing to feel for an egg, some slimy dark yellow with white poo just kind of fell out of her behind. She will be 1yr old on March 3rd Buff Wyandotte has been eating Nutrena "All Flock" fermented feed with access to free ranging. internal laying is my only guess but i have never dealt with it before. I would GREATLY appreciate some help, she's one of my favorite girls.