@pete555947
2 yrs ago I injured the trigeminal nerve. It runs from jaw hinge to teeth. Pain was intense intermittently and lasting seconds. Had been blowing a lot of alto sax. Took cabama zepine , After a few dental checks my Dr correctly diagnosed it.
Some 2 months ago I started lifting a 20 kg bar vertically. Neck strain strengthened jaw muscles. All symptoms gone.
An artery runs up the outside of brain. The trigeminal nerve crosses it. It's insulating fat (myelin) had been worn away. I read that alcohol stops B12. absorption. B12 (cobalamin) makes myelin. Have not drunk any alcohol for last 3 months. And take a B12 supplement.. Please Google " effect of alcohol on myelin production "