A headache is any kind of pain in the head, scalp, or neck. There are many different kinds of headaches, with many different causes.
A thunderclap headache is a headache that is severe and sudden-onset. It is
defined as a severe headache that takes seconds to minutes to reach maximum ...
Migraine pain is moderate to severe, often described as pounding, throbbing
pain. Migraine headaches can last from four hours to three days and usually
Jun 16, 2014 ... According to the National Institute of Neurological Disorders and Stroke, one sign
of stroke is a sudden severe headache with no obvious ...
However, a second type of stroke that is caused by a severe headache
is called " cerebral vasoconstriction ", a term which describes a powerful spasm of a blood vessel in the brain which is so severe
that it can completely stop blood flow to a portion of the brain. As... More »
Mar 10, 2015 ... Chronic daily headaches — Comprehensive overview covers causes, ...
moderate to severe pain; Are aggravated by routine physical activity.
Jun 1, 2009 ... But if your headache is severe or unusual, you might worry about stroke, a tumor,
or a blood clot. Fortunately, such problems are rare. Still, you ...
Jun 12, 2014 ... Read about the worst headache in your life. This type of headache may be a
symptom of a life-threatening problem such as: ... Bad Bugs
Although a bad migraine might make you wish for the end of everything,
headaches are not usually life threatening. However, a severe headache can
More than 47 million Americans have experienced a severe or debilitating
headache in the past three months. Migraines alone affect 9% of the U.S.