This. Explains a lot.
My mom worked in a psych ward/mentally handicapped institution when she was pregnant with me. Also used to see scary/disturbing films.
I had a vivid nightmare when I was 12. Then about 5 years later, a friend brought Night of the Living Dead over tonight my place tomorrow watch. It was like I was witnessing my nightmare on a detailed level. I found out later that my mom saw it when she was pregnant with me & she got violently ill.