Dont know if it's an ADHD thing, but I have that. What's weird is I eventually realized that the soundtrack is talking/reflecting back to me about what's going on in my life.

My music varies. Sometimes it’s music I’ve heard recently on loop, sometimes it’s music my brain came up with, but a lot of times it’s in the background. At times I don’t even notice the music is there until I realize I’ve been playing the King George songs from Hamilton on a loop for a couple of weeks. Either that or I’ll start focusing in on something external and start humming what’s in my head without realizing it. Right now, it’s Foxy Brown’s “Oh Lord” on muddled repeat. Yeah yeah yeah yeah yeah yeah yeah yeah.