Is it normal constant death nightmares

I don’t dream a lot, but when I do, it’s often an extremely vivid image of me getting murdered by someone unidentifiable.

Last night I had a dream that I actually remembered for the first time in weeks if not months, where I was in a car with a friend. We were talking together and heard a noise to our left, so we looked to see a man walking out of a house we were right next to. The man had an automatic weapon of sorts that almost resembled a shotgun. He pointed it towards the window and I tried to duck but I had already felt a strange numbing sensation in my brain. For awhile I was trying to play dead but I soon awoke terrified.