My cat is around 4 years old, she got used to my apartment and yesterday I drived her to my family's house. When I left her there she was scared to the point where she hid behind the counter and didn't leave once. My cat is very scared of everything, but there is no threat in the house. My grandma is taking care of her. She doesn't chase the cat, scare her in any way, but still my cat is terrified. I called today and my grandma said she didn't eat or drink or go to the toilet. Is it possible she could die this way?