Hi Woody ---about 10 yrs ago i had daily headaches for several years. My G.P said I think there rebound headaches --from taking 2 much advil. Since I was getting them for several years prior. She told me I dont care how bad the headaches get no advil for 10days. Trust me that week was hellish but it worked----I do get headaches and I take advil when i do but there not nearly as often. Not sure how long this been going on for you but I thought I share my experience. Best wishes --also another thought have you had vision tested??