Yeah, I've had an MRI and was told there was nothing obvious and to habituate it, which by then I already had. However it varies quite a lot and am beginning to notice it tends to be a lot worse when I'm stressed or my shoulders feel tense.

I have tinnitus and it is aggravated by stress. I have changed my lifestyle to avoid stressful situations but it isn't easy.

Sticking to a healthy diet and avoiding alcohol have been easy wins though.