Since last Saturday evening I have had a terrible pain in my left jaw for some unknown reason.
I tucked into a fry on Saturday evening, no problem, but when I went to eat a packet of crisps later on, I could barely open my mouth. When I yawned or sneezed, the pain was outrageous.
It improved steadily Sunday and yesterday but this morning it is throbbing again.
Any suggestions as to what the problem is?