here is an example of eagle jugular syndrome imagining
https://bmcneurol.biomedcentral.com/articles/10.1186/s12883-019-1572-3
But it can press on any number of things in your head/neck..veins, arteries, nerves. Can cause so many different symptoms depending on what it is pressing on. Since Tinnitus is one that is why I tell people to at least have your dentist check your panoramic xray
btw, this is not a modern day processed food problem. they have found it Eagle Syndrome in skulls dug up for the early mankind eras...and yet it wasnt officially discovered until the 1930s and most doctors are clueless about it.
If you have weird stuff going on that doctors cant figure out look at that panoramic xray. Chances are you dont have it because it is rare but I have so many rare things “rare” doesnt mean anything to me.