Dan,

Mark is right. You should get your neck evaluated. It took me way too long to realize I had really bad soft tissue damage in my neck. I have trigger points everywhere and they all radiate to my head. Unfortunately, I have not gotten any relief from medications or trigger point release (or massage). Structural damage in the area Mark suggested also is a possibility, as the occipital nerves and other nerves exit the spine at C2.

I haven't found any relief for my headaches accept quiet rest and ice applied to my head/neck. This does not remove the headache but can help when they get particularly bad. Tylonel and aspirin seem to help take the edge off as well.

Get your neck checked out by a specialist and get some imaging done. Reduce your activities or you will never recover.

Good luck.