I agree with Bill. It's better to get this checked out, especially if it is recurring and I would recommend you see a neurologist - if you can, one who specializes in headaches. I have lupus which causes headaches, I also have migraines, and I also suffer from occipital neuralgia. So as you can see there are three different 'headache types' that I suffer from. But only a specialist can diagnose you correctly based on the symptoms, the origin of your pain, and by any diagnostic tests if necessary. The reasons it is so important is because each one has their own line of treatment in their own right and unfortunately (at least in my case), one treatment won't treat the other.
I hope the best for you... chronic headaches are the worst.
Dx: IBS, Diverticulosis, Idiopathic Acute Colitis, SLE, Sjogren's, Localized Scleroderma, Raynauds
Meds: Plaquenil 400mg/day, Pred 5 mg/day, Topamax 100mg/day, Lodine 500mg/day, Protonix 40mg/day
Methotrexate 10mg/week, Arava 20/mg (what next???), Vicoprofen PRN, Flexeril PRN, Fiorinal PRN, Baby aspirin, Prenatal Multi, Vit E, B12, Fish Oil, Biotin, Calcium, Folic Acid