I think there may be a possibility I'm my own great grandfather. A while ago I had this very vivid dream. I was in the house of my grandparents (father's side) and my parents and aunt were there too. But everything was different, they were all a lot younger and by the look of their clothing it looked liked the 70's. I could also tell my mother was like 2 months pregnant. I was born in 1978 and as I am an only child that only could have been me in there. I know my GGF died a few months before I was born. I've also seen a picture of him when he was 17 years old, my grandmother was always joking how much I looked like him. Do you think it's possible that after he died he decided to become me, even though my mother was already pregnant when he was still alive?