Is it normal to have dreams this disturbing?

Um, gore warning, I guess. I have frequent nightmares that tend to be very bloody, filled with death and rot. I'm a pacifist. A Buddhist. I've had these dreams since before I saw my first horror movie. In one, I was just wading through warm buddies, gutted and turned inside out. In another, I was in a taxi that drove over people who kept running into the road. It stopped feeling like road and more like we were trapped in ground meat. In another, a rotted man just followed me, his liquefied flesh dripping as he walked. I dream of things like this frequently. Just last night, I dreamt a bad man melted a woman's flesh off.

Is this normal? Any ideas?

Oh, also, one where I was a toddler where a woman with sharp teeth tried to convince me to kill my family, and one where a whole bunch of copies of me tore me apart.