I have frequent headaches that were made a lot worse by a motorcycle accident a decade ago, and I've spent a lot of time experimenting with different things. I

I have frequent headaches that were made a lot worse by a motorcycle accident a decade ago, and I've spent a lot of time experimenting with different things. In my case, the biggest factor seems to be muscular, and doing trigger point massage has almost eliminated the problem. There are an amazing number of muscles that can cause some kind of headache (not just including neck muscles but also a bunch of jaw muscles reachable from the inside of your mouth...) It's now gotten to the point that depending on which type of headache (temple, top of head, stabbing in the eye, etc.) I get, I pretty much know which muscle to massage. So, my obligatory reference for people who have chronic back pain or headaches: The Trigger Point Therapy Workbook ww.amazon.com/Trigger-Point-Therapy-Workbook-Self-Treatment/dp/1572243759