My red sex link hen has an enlarged belly that is mushy. She is waddling like a penguin. She has been acting like this for at least 7 days. We live in northern NewYork. At first I thought she was cold. When she moved away from the heat light in the coop and hid in the corner I suspected it was something more. I thought she may be dehydrated. I brought her inside for closer observation. She has never lost interest in eating or drinking. She has also been eating plain yogurt. She has been pooping but with different consistencies - sometimes normal, sometimes diarrhea, sometimes gassy. there is not an egg stuck in her vent or near her vent and i can't feel anything hard in her belly. I have given her the warm spa baths in the evening. She actually enjoys them but they don't seem to produce any results. She is cooing to me when i talk to her. Any ideas on what iI can do to remedy this?