A Major Pain

Headaches are a common right of passage taken during pregnancy. According to The National Women's Health Resource Center in Red Bank, N.J., an estimated 28 million women and men suffer from migraine headaches. Women tend to experience migraines three times more often than men, due to the direct link between migraines and changes in the levels of the hormone estrogen that occur during a typical menstrual cycle.

An estimated 15 to 20 percent of expectant women may suffer from migraines. Some women's attacks seem less severe during the course of their pregnancy, and others report that their attacks become more frequent and stronger during pregnancy.

Migraines are vascular headaches that occur when the blood vessels in the brain constrict, then dilate. They begin with a throbbing pain localized on one side of the head, which quickly grows stronger. A person may then begin to experience nausea or vomiting.

The two most common types of migraine headaches are referred to as "classic" or "common." Classic migraines involve the appearance of an aura (where a person sees flashing lights or lines or experiences temporary vision loss) approximately 10 to 30 minutes prior to a migraine attack. Symptoms of a classic migraine also include an intense, throbbing pain around the forehead, temple, ear, jaw or around the eyes. People who suffer from common migraines usually do not experience an aura. However, they may experience a wide range of symptoms prior to an attack, including fatigue, diarrhea, nausea and vomiting.

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