What could this dream mean?

Ever since I was a little kid I’ve always had excessive nightmares (an unfortunate side effect of my TS). I was just wondering though if there could be any significance to the fact that at least 70% of my nightmares center around some stranger breaking into my house and murdering me in horrific ways. I know this is kind of a morbid question, but therapists usually brush it off and I really want an opinion of some kind! Any ideas what these dreams could mean, if anything?