Being 1/4 Polish, I can definitely say that it's your blood line and not the Cymbalta!

My daughter and I have similar experiences. She's actually seen my father (who died before she was born) and my grandmother (this happened the day after Grandma died), and I've had similar experiences with each of them, except that Grandma sends messages to me through my dreams. The most recent one was the night before my daughter was in a serious car accident. I thought it was a strange and nonsensical dream until I was at the scene of the accident.
Seriously, I have no experience with Cymbalta, so I can't offer an opinion on that. Maybe the Cymbalta is just giving you super-powers!