Possible brain tumor, clot, sinus infection or tooth infection S/S? I am presenting with throbbing sharp pain in left temple also constant pulsating palpable pulse just above the left ear. Off and on for several months. left eye twitched for 1 week straight then subsided. Pain in the back of my head as if someone punched me. Dizziness vertigo ringing in my left ear. When I close my eyes at night the room feels like its spinning. I m tired often. No history of DM or HTX.