I am a boy, a sophomore in high school. Why does it matter? And no I am not doing this for attention, I just thought I could get some options about what to do by coming here. And I only asked, what would any of you do in such a situation?
Any answer can be helpful.
Thanks in advance.

You asked what we'd do if we're being stalked. The thing is, what you described isn't stalking.

I've been stalked. One of my exes stalked me for many months. He would sit outside my house all night in his car, follow me to work, send me inappropriate gifts, call all hours of the day and night. I ended up calling the cops, but I had to do it a few times before they took it seriously. What finally sealed the deal is the night he came over while my parents were out of town, and beat me up.

That's stalking.

What you're describing is behavior that makes you uncomfortable. It's not stalking. So, what would I do in your situation? I'd tell a teacher, I'd talk to the school principal and counselor, and if they don't think there's an issue but you do, I'd talk to mom and dad and see if they can step in. But really, from what you've written, the people that are doing this, their biggest offense is looking at you, or being in the same hallway or on the same bus as you. How do you expect anyone to put a stop to that? They do have the right to take the bus, or walk in the same hallway as you, and sometimes eyes meet and it can't be helped.

I really think you're overreacting to all of this, based on what you've told us. So unless there's more to the story, I think you're the one that has to change your behavior and attitude, not them.

If you are a guy in high school, what you are describing is immature behavior from others. How old are these other people, are they in high school as well?

It is possible that you are paranoid. I agree with many on here. What you have described is not stalking. Maybe they want to be friends with you and you aren't allowing it due to your behaviors. Again, what is it about you that makes people behave this way.

Additionally, people are allowed to behave however they want to behave as long as it does not infringe on your rights. There is nothing you can do about it. So live and let live and stop being so sensitive.

What I would do is stop spending so much time and energy being afraid and suspicious and avoiding of people I don't know, to spend more time enjoying my friends and working through my own shyness.

Its one thing to think people are out to get you and its quite another to actually act on those fears. That's what you are doing, acting on your own fear and that's NOT a healthy thing at all. You have never bothered to find out if indeed they are the threat you think they are. You have assumed they are and made them a bigger threat.

At some point you must face the fear to get the facts or keep wearing yourself out being afraid. Ask your friends if they know of them without making drama for yourself. Especially if a few are in your class with you.

Then if and when you find your fear is not real, then its you that has to work on YOU. I think the easiest way to know a person is to see who their friends are and the activities they engage in and the way they interact with others. If you never see them acting threatening at all, then entertain the fact that its YOUR fear building drama in YOUR own mind.

Be willing to make some changes in your thinking if you indeed prove to yourself you are wrong.

Since you are boy, it's even easier, as I said talk face to face. Face you fear. Someone called you she, assuming you are a girl but its common in high school, guys also have similar issues.

Stalking or feeling that you are being stalked is most definitely not common in high school.

What Country are you in where this is common behavior?

One of OP's initial responses to being "called crazy" makes me believe he/she is extremely sensitive and very possibly paranoid.