Ive had dreams where people I love and trust torture and/or kill me in quite hideous ways. It's been going on ever since I was a little kid. Sometimes they wake me up and I have to keep the light on to retain sanity. Of course once lucid during the day, the dream doesnt seem nearly as frightening, but they remain morbid nontheless.
From my understanding, dreams, as fantastical as they may seem, have little to do with mental health. If it's really bothering you, get off the internet and talk to a professional.
I am a dinosaur. BUT! i am hiding.