migraine
"I am 57 and had been having migraines (severe enough to cause vomiting) for about 10 years without knowing what they were.  Was diagnosed a few months ago and given Sumatriptan.  It has changed my life.  No side effects at all.  I take 1/2 to 1 pill when early signs appear, and some naproxen.  Within 1/2 hour or so I am fine and life goes on."