My bedroom was in the basement from about 13 to 18.
I'd run up the stairs after turning off the light because I was scared.
It got much worse after seeing Silent Hill the movie for the first time and imagining small figures rising from the basement floor in the dark.
I'm not sure why I went through a period during which I was truly scared and upset at images of death and war, after being perfectly fine with horror and violence in movies and books.
When I was in the shower I was afraid of closing my eyes because a Samara-style girl would be in there with me when I would open them.
Now I only get that fear sometimes when I'm trying to sleep. It's more of a pale creature I imagine.