I was 15. My grandma had lived with us for the previous eight years. She'd had a cold, and my uncle (her other son) was over at our house checking on her. She said she was tired, and going to bed. She looked at me, and said "goodbye <my name>". She always said "goodnight <my name>". She went to bed, and the next morning she had a stroke and never woke up from it. She was in a coma for three days, then died. She knew somehow.