I ve been told I have occipital neuralgia.Headaches, neck pain on left side, pains in left side of head. Had shots into area, theraphy, carbazipine, horizant, pain pills. My vision is not always great. I,m diabetic, but my blood sugars are good. Aic is 6.3 Been to many Drs. Pain clinic thinks I should try Neru stimulator implant. What are your thoughts about this