TL;DR: Facebook does not offer a feature to see who views your profile or follows you anonymously. You can only see the total number of followers, but specific viewer information remains private to ensure user privacy.
What is Facebook Stalking?
Facebook stalking means someone is watching what you do on Facebook very closely. They check out everything you post, like your photos and videos, and see what you’re up to.
There are two ways people might do this on Facebook. Sometimes, if you just met someone, they might look through your profile to see the things you post about and what you’re interested in. But other times, someone might keep checking up on where you’ve been and the stuff you share, doing it a lot.
Imagine your neighbor knows a bunch of stuff about you, but you two aren’t really friends and don’t talk much when you see each other. They might know all these things because they’re watching what you do on Facebook.