Hi
Welcome to the MedHelp forum!
It is difficult to diagnose the cause of headaches on net. Sinusitis, refractive errors of the eye, migraine, cluster headaches, brain tumors, high blood pressure, tension headaches, temporal arteritis, pinched cervical spinal nerve, poor or disturbed sleep etc are several causes of headaches. Dental pain and ear ache can cause similar symptoms. Needless to say, a persisting headache should be investigated. Please consult a headache and migraine specialist to rule out these causes one by one.
Take care!
That kind of sounds like cluster headaches, although those usually target somewhere around your eye. You should go to your doctor to get checked out. If you're having blackouts with severe dizziness, that could be a red flag. COULD be. Not trying to scare you or anything, but you should get to a doctor asap. Hope all is well.