predicted a sickness?

[V00D00]

   It was saturday morning ten days ago. I just woke up and immediately remembered my dream in which I was saying goodby to my granpa, and my grandma, and then my granpa again. I'm not sure but I also think that I told them to take care. A phonecall actually woke me and I was trying to hear what's that my father is saying. A few seconds later he went into the bedroom and told something to my mother. The next thing I realised is my mother in my room telling me that grandpa had a brain stroke. Later we learned that it was a particulary strong one and today, ten days later, we still don't know what will be with him.
   Is it possible that somehow I knew what will happen and was saying a mental goodbye to my grandpa?