I also suffer from pain in the left eye and headaches in the head and back of head radiating to left side of face upper teeth and cheek, forehead. I have been rediagnosed with trigeminal neuritis and occipital neuralgia. Try ice on the back of your neck and see if it helps. The pain docotr pushed on the back of my head which sent me to the roof, but it confirmed the occipital diagnosis. I am trying to have stimulators implanted, but insurance is saying it is experimental. I am also having nerve blocks in my neck and head to see if they help. I was also told to have the MVD surgery by some doctors, others not so now am trying other methods. Do not give up search and be sure before you have the surgery. Take care ,Jen