trigeminal neuralgia
"Dear God never experienced such pain like it (not even childbirth) - started with twitching to lower face 5 days ago and then bouts of explosive pain to left cheek, jaw, upper and lower teeth.  Pain coming every half hour and lasting between 7-10mins each - cant do anything other than wait for it to pass (and cry at times)!  Started carbamazepine yesterday am twice daily and pain lessened already but feel very sleepy and bit nauseous / "loose" - still feel the underlying pain there but so much better.  Emergency dental appointment today with xrays - no dental cause.  Have had tinnitus in left ear for past 8-9 months after heavy cold plus some cervical disc bulging and nerve root impingement at C7.  Anyone else been given a cause for this??"