exactly the same as me! and "shadow sounds" is the perfect term for it!

almost any motion involving acceleration generates shadow sounds, for example watching people walking creates a wooop-wooo-wooop-wooo (rising-falling) sound

flashing lights (emergency services) is the most powerful, like you it's "thumps" at different pitches timed exactly to the lights

I also get the same in reverse: when I listen to music I "see" moving shapes in a dark space