Dejavu has been proven to be minor ceasures that affect short term memory. You should take notes on what you were doing and what environment you were in and you might find a pattern.
So in HS, someone's last name always stuck with me. I never knew him. It was a unique Italian name that I always remembered, 10 years later, I ended up dating his cousin for 2 years that lived an hour away.
I had a dream that came true 2 years later. I dreamed that I met someone and we dated. Yep. Big woop. I was sad when the dream was over. I didn't know her, but I remembered, big blonde hair, squinty eyes, big toothy smile. 2 years later I met her and we dated.