When someone has a basilar migraine, there is a disturbance in the brainstem or lower part of the brain. Even before the migraine headache begins, the person may experience an ''aura,'' consisting of a variety of symptoms such as dizziness, double vision, and lack of coordination. An aura is a neurological phenomenon that occurs about 10 minutes to 45 minutes before the headache starts.
Basilar migraines are known by several different names:
You have a sudden, severe headache. It is the “worst headache of your life.” Or you have had a seizure, are confused, have passed out, or have a change in behavior. These may be signs of a stroke. Call 911.
You have a severe headache with vomiting, limb weakness, double vision, slurred speech, or difficulty swallowing. This may signal a stroke, cerebral hemorrhage, or an aneurysm. Call 911. Get medical help now.