occipital neuralgia
"Struggled with migraines and behind the ear neck pain for over 10 years. General doc thought migraines and tried various different meds, with no success. OTC analgesics didn't touch it, either. 

Finally saw a neurologist on the advice of my new general doc after my previous retired. He immediately diagnosed it as textbook occipital neuralgia and put me on Neurotin. 

I was better within a week. Still had some lingering pain on certain days so he doubled my dose, which was the minimum at the time for an adult. I'm still on a super low dose and have a headache now maybe once every three weeks instead of 5 to 6 times per week."