hi. So I have a little buff bantam hen who is probably about 4 or 5 years old. We noticed today that she is acting weird. She is breathing fast and heavy but her mouth is closed. She keeps her eyes shut, seems off balance. She didn’t make a sound at all when I picked her up when usually she would put up a fight and run. She has been on the lighter side since the summer as she was refusing to leave the coop to sit on her egg. She ate a bit when we put food near her. No sounds when she is breathing. Haven’t noticed any weird poo but I was holding her and I picked her up and noticed a few milky drops left behind Any clues???