migraine

noun2

1. •
   A severe, disabling headache, usually affecting only one side of the head, and often accompanied by nausea, vomiting, photophobia and visual disturbances.

   • He had a headache so bad that he wished he was dead, but it was the sort of migraine that promised him he would continue to suffer but not die.
   • After consuming too much coffee every day for six weeks, she got severe migraines that would last up until 47 minutes after her first cup of coffee.
2. •
   A neurological condition characterised by such headaches.

   • Syncope is estimated to occur in bouts of headache in approximately 5% of adult patients with migraine. — 1995