Migraines are a type of headache that cause severe, throbbing pain, often accompanied by nausea, vomiting, and sensitivity to light (photophobia) or sound (phonophobia). Migraine headaches generally last between four and 72 hours. Many people experience certain symptoms prior to the onset of the head pain. Symptoms that precede and herald an upcoming headache are referred to as an "aura," and usually last under an hour.
Symptoms of an aura include:
Changes in your vision (even brief blindness)
The clinical presentation of drug-induced aseptic meningitis is the same as that of viral meningitis. Cerebrospinal fluid findings are the same as those in viral meningitis, except for a neutrophil predominance; however, in cases induced by intravenous immunoglobulin, eosinophils are present.
WebMD Medical Reference from WebMD Scientific American Medicine