Definition

By Mayo Clinic staff

A migraine headache can cause intense throbbing or pulsing in one area of the head and is commonly accompanied by nausea, vomiting, and extreme sensitivity to light and sound. Migraine attacks can cause significant pain for hours to days and be so severe that all you can think about is finding a dark, quiet place to lie down.

Some migraines are preceded or accompanied by sensory warning symptoms (aura), such as flashes of light, blind spots or tingling in your arm or leg.

Medications can help reduce the frequency and severity of migraines. If treatment hasn’t worked for you in the past, talk to your doctor about trying a different migraine headache medication. The right medicines, combined with self-help remedies and lifestyle changes, may make a tremendous difference.

Symptoms

By Mayo Clinic staff

Migraine headaches often begin in childhood, adolescence or early adulthood. Migraines may progress through four stages — prodrome, aura, attack and postdrome — though you may not experience all the stages.

Prodrome
One or two days before a migraine, you may notice subtle changes that may signify an oncoming migraine, including:

• Constipation
• Depression
• Diarrhea
• Food cravings
• Hyperactivity
• Irritability
• Neck stiffness

Aura
Most people experience migraine headaches without aura. Auras are usually visual but can also be sensory, motor or verbal disturbances. Each of these symptoms typically begins gradually, builds up over several minutes, then commonly lasts for 10 to 30 minutes. Examples of aura include:

• Visual phenomena, such as seeing various shapes, bright spots or flashes of light
• Vision loss
• Pins and needles sensations in an arm or leg
• Speech or language problems

Less commonly, an aura may be associated with aphasia or limb weakness (hemiplegic migraine).

Attack
When untreated, a migraine typically lasts from four to 72 hours, but the frequency with which headaches occur varies from person to person. You may have migraines several times a month or much less frequently. During a migraine, you may experience some of the following symptoms:

• Pain on one side of your head
• Pain that has a pulsating, throbbing quality
• Sensitivity to light, sounds and sometimes smells
• Nausea and vomiting
• Blurred vision
• Diarrhea
• Lightheadedness, sometimes followed by fainting

Postdrome
The final phase — known as postdrome — occurs after a migraine attack, when you may feel drained and washed out, though some people report feeling mildly euphoric.

When to see a doctor
Migraine headaches are often undiagnosed and untreated. If you regularly experience signs and symptoms of migraine attacks, keep a record of your attacks and how you treated them. Then make an appointment with your doctor to discuss your headaches and decide on a treatment plan.

Even if you have a history of headaches, see your doctor if the pattern changes or your headaches suddenly feel different.

See your doctor immediately or go to the emergency room if you have any of the following signs and symptoms, which may indicate other, more serious medical problems:

• An abrupt, severe headache like a thunderclap
• Headache with fever, stiff neck, rash, mental confusion, seizures, double vision, weakness, numbness or trouble speaking
• Headache after a head injury, especially if the headache gets worse
• A chronic headache that is worse after coughing, exertion, straining or a sudden movement
• New headache pain if you’re older than 50

http://www.mayoclinic.com/health/migraine-headache/DS00120