How much do you talk to yourself?

This is my first post on this sub because I just realized that me walking around my kitchen with headphones on for hours has a name. I’ve come to accept thats just a part of me, but I wanted to ask if talking to oneself is a sign of anything mental related? I realized that I talk to myself at any chance I get when I am alone, and I mean any. It’s gotten so out of hand, that when I’m in public and I want to talk, I pretend to take a phone call and start yapping away 😭. Does anyone have similar experiences? Super interested in this sub, it feels like I found my people.