Base of skull has a weird rub/grind when doing a certain movement
For about a year now, I’ve noticed that if I look all the way up to the sky or ceiling, and rotate my head left or right (chin guiding the turn), I get this weird deep rub/grind at the base of my skull or spine (maybe C0-C3?).
It feels like if you were to make a fist and rub your knuckles left and right against each other. If I use two fingers and push down on the neck and try to replicate that sensation, it doesn’t happen.
I want to know if anyone else has experienced this before?