Genuine fear

Has anyone ever gone through a period of time where you feel as though something will get you?

I was genuinely convinced my dog was going to stand on two legs and kill me. I also think things are going to suddenly appear crawling and screaming when I turn off the light. I know nothing is there but I just have to close the door before that feeling reaches me.

Is that a normal phase? I don’t know （￣へ￣）