I always feel watched. No matter where I do it, there are people watching outside and at home. Why is this?

Why do you always feel that you are being watched by others? Whether at home or outside, it deserves attention. I think you must be mentally ill. If this is the case, I suggest you find a psychologist as soon as possible and ask others to help you recuperate. Because after a long time, it will definitely have a great impact on your body, especially psychologically. This is definitely a disease. Please don't ignore it, pay attention to it.