Yes. My internal monologue runs constantly. I'm not sure I can think without hearing that internal voice, since it's always there. One thing I wonder about is what voice other people hear. Is it your own voice, a more idealized version of your voice, or another voice entirely? I've always heard someone else's voice, not my own (and a woman's voice at that, which I foolishly thought was normal for trans women, but it seems like most people hear their own voice, or something akin to their regular speaking voice).
A related question is how people see themselves when projecting themselves into a future or past scenario. Do you see an image of yourself doing something like a movie? Or am I the only person who does this? When I think about something that I have to do, or want to do, in the future, I project an image of myself doing it, from outside, and watch myself going through whatever actions I need to perform. I do this to pre-test for difficulties and prepare solutions. I thought everyone did this, also, but I'm no longer sure. There seems to be a lot of variation in how people think.
Is it just me or is it getting crazier out there.