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The symptoms are intense throbbing pain often on one side of the head, which may spread to the entire head, neck and shoulders. Sometimes bright spots, flashing lights or zigzag patterns may be seen prior to the headache.

The headache is often present on awakening and may be accompanied by nausea, vomiting, dizziness and tingling in the lips. Bright lights and noises become unbearable. The headache is due to swelling of the blood vessels that go to the scalp and brain. Before swelling, the blood vessels first tighten up, decreasing the amount of blood going to the brain. This produces the visual disturbances and in severe attacks may cause paralysis, and loss of ability to speak. During attacks, some people become pale, with bloodshot eyes and runny nose.

Call your Doctor if your headache is associated with crossed eyes, paralysis or inability to speak or if it persists for more than 24 hours.


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