Just discovered one of our hens (just turned a year old) has a swollen abdomen. It is awfully large. She is kind of panting part of the time. Just put her in some warm water. She laid an extremely tiny egg (more like the size of a wild bird) several weeks ago. Has laid at least 1 or 2 eggs since then. Seemed fine. She is kind of looks like she is hovering the ground. She broke her toe nail last night on the roost. I guess she had a hard time getting up on the roost. I did not pick her up last night. Probably would of felt it if I had. Anyone know what might be wrong. The abdomen feels like a water balloon with a little give when you push a little on it.