The neurotoxins that come from systemic infections can cause a chemically induced form of Migraine. If your currently not being treated, diet and lifestyle changes can make a big difference.
BTW - I've hear the figure that only about
half of folks with migraine (a neurological disease) actually have headaches. Brain fog and auras are also symptoms. I personally almost never have headaches. At my worst I can feel pressure in the temples.
Alka Seltzer Gold (w/o aspirin) can give temporary relief (but it is high in sodium).
Here is a book that was recommended to me and I've recommended it to others who have found it helpful.
www.amazon.com/Heal-Your-Headache-Program-Taking/dp/0761125663This is a convenient link but it's available at other retailers also.