Most headaches can be classified as either migraine, tension or cluster headaches.
The pain of a migraine headache usually begins gradually, intensifies over one or more hours, and resolves gradually at the end of the attack. The headache is typically dull, deep, and steady when mild to moderate; it becomes throbbing or pulsatile when severe. Migraine headaches are worsened by rapid head motion, light, sneezing, straining, constant motion, or physical exertion, thereby leading many migraine sufferers to seek relief by lying down in a darkened, quiet room.
Tension headaches are the most common type of headaches. They are characterized by a feeling of pressure or tightness all around the head. The pain tends to fluctuate during the course of the headache, and the severity of pain and its effects on daily activities vary from person to person. In contrast to migraine headaches, tension headaches occur in the absence of other symptoms such as nausea, vomiting, sensitivity to lights and sounds, or an aura.
The pain of cluster headache begins quickly without any warning and reaches a peak within a few minutes. The headache is usually deep, excruciating, continuous, and explosive in quality, although occasionally it may be pulsatile and throbbing. The pain typically begins in or around the eye or temple; less commonly it starts in the face, neck, ear, or side of the head. The pain is always on one side.
A referral to a neurologist can be considered for further evaluation. If you are concerned about a brain tumor, you can consider a head CT as the next step.
Followup with your personal physician is essential.
This answer is not intended as and does not substitute for medical advice - the information presented is for patient education only. Please see your personal physician for further evaluation of your individual case.
Thanks,
Kevin, M.D.
Bibliography:
Bajwa. Patient information: Causes and diagnosis of headaches. UptoDate, 2004.