the worst pain ever.

i have the worst pain in my jaw ever. it happens every single night whether i avoid cold or hot foods or not. i’ve been to the dentist countless times and my teeth are absolutely fine; i’ve had scans and x-rays and no cavities or abscesses. nothing wrong with my ears either. but every single night i get excruciating pain in my jaw, like it “fills up” and gets hot and sore and the pain is so bad my eyes water. i take naproxen & paracetamol (i’m bad with codeine so i can’t take cocodamol or anything) but even that doesn’t dull the pain. i know nobody on here are doctors but if anybody has experienced this sort of pain or has any idea what could be causing it it would be appreciated ):