Same here. Mine is basically directly correlated with bite pressure. When I'm chewing sometimes I can literally hear the ringing going "wah, wah, wah" in time with my chewing. And if I grit my teeth I can make it get much louder than its baseline. Same if I open my jaw quite wide (sometimes this helps?). I've ground my teeth my whole life. And I can definitely point at one or two concerts that probably did some significant damage.