I have had headaches at the base of my skull for several years. In the past couple of years, I often have a sound that accompanies them,sounding like sandpaper in my head. My neurologist seems to think it s nothing serious, but the headaches and sounds are both occurring several times every day. Could there be a cause other than migraines? The headaches have been treated as migraines, but they don t go away. They sometimes lessen, but never disappear entirely.