A common migraine is a disorder involving recurrent headaches, which may be accompanied by symptoms other than headache but which rarely include a preliminary warning (called an aura). Migraine headaches affect about 6 out of 100 people. They are common type of chronic headache and most commonly occur in women and usually begin between of 10 and 46. In some cases, they appear to run in families. Migraines occur when blood vessels of the head and neck spasm constrict, which decreases blood flow to the brain. Minutes to hours later, the blood vessels dilate (enlarge), resulting in a severe headache. Inflammation around the blood vessels also occurs in some cases. Multiple mechanisms trigger the spasm and subsequent blood vessel dilation.
Symptoms: Throbbing, pulsating pain, vertigo, nausea, fatigue, dizziness, loss of appetite, vomiting, neck pain, pain sometimes may be worse on the sides of the forehead; be on only one side of the forehead; be severe or dull; and commonly lasts 6 to 48 hours.