Have you ever.....you? (Please read the question below)

Have you ever experienced fear psychosis like somebody is following you and it's a strong feeling but everytime you turnaround you don't see anyone behind you or even at a short distance?

I experienced it only once but it wasn't really fear psychosis. I wasn't even worried about it. I was 12 then. Throughout the day I felt as if someone was whispering my name and calling me from behind. It experienced it at school, on the way back to home, even when I was playing with my friends in the evening and until I slept. Next day, didn't experience anything like that and haven't experienced it to date by Good Lord's grace.🙏😇