I feel this in a minor way from time to time.

Usually I cannot leave my building without thinking people in their cars are staring at me or following me.

Other times I go to the cafe at college and think everyone is watching me. I start wondering if it's cause I'm pretty or if I'm ugly, but sometimes I really think it is true they are watching.

Once in a blue moon I will see a dark shadow out of the corner of my eye or hear someone calling my name faintly. That freaks me out, but then I shrug it off and go on with my day/night.