Are these dreams normal? Shouls I be concerned?

I have been on antidepressant medication for 7 months now and one of the side effects is "vivid dreams". About 2 months ago I started having extremely horrifyingly disgusting dreams every single night. At first I thought that maybe I was just stressed out but I have tried everything I can think of to stop these and nothing has prevailed. These dreams happen every night and involve murderers, family members being murdered, bloody gory scenes, me running&hiding, anxiety, sadness, fear, hatchets, machetes, guns, people having organs ripped out, people having there skin ripped off, even baby’s being recklessly killed and thrown in holes. I don’t think I have had a dream in 2 months now that didn't involve murder and the only time any of these dreams have anyone familiar to me in them is when a family members being killed. I speak to people in these dreams but absolutely everyone other then the victums are familer to me in waking life. Should I be concerned for my mental health?