My old, blind chicken Hazel, has been acting very weird for the past 4 days. I came home one day and she was lying down, not responding to my calls. When I stood her up, her head drooped back down. Usually when I tap the food dish, she'll come running. She didn't even lift her head when I did today. She hasn't eaten or drank much. Mostly she sleeps. Mind you, she is blind and old, so sleeping is usual, but not this much! She also has white, totally liquid poop. Her eyes never open anymore, unlike before when she would open them a crack. Is there medicine I can buy? Or home remedies?