Stress or tension (primary) headaches...
can be caused by having stress physically on the body or mentally, such as having your muscles tensed in the wrong position like angling the neck wrong while sleeping or by too much work related stress in your life. This type of headache can be a dull steady pain that can permeate through the neck, all over the head, temples, create tension in the scalp along with knotted shoulders. Ways to alleviate the stress headaches include getting more rest, taking an over the counter headache reliever, keeping stress levels down, and stretching properly in the shoulders and neck area.
Another type of primary headache...
would be the migraines. These are evident when blood flow is reduced to the cerebral cortex or there is a change in the contraction and expansion of blood vessels around the brain. The intense throbbing pain can cause a high sensitivity to light, nausea or vomiting, numbness, and flashing lights along with blind spots in the sight. Women are the more likely sex to have migraines and they can frequent during menstruation.
Cluster headaches on the other hand...
are more likely to affect men. These are headaches that cluster in a certain area of the head (generally around the eye area) and happen over a period of days. Excessive alcohol consumption can trigger a bout of cluster headaches.
Aspirin, a good nap, and dimmed lights is often enough to get rid of many headaches, but there are stronger measures for those suffering chronic headaches. Check with your physician so that a suitable recovery regimen can be formulated for your specific pain relief needs.