migraine
"I completely rely on Imitrex. Once I had this the day-long headaches are gone. I now know that what I used to call "sinus headaches" were migraines I had since a teenager, though not bad until into my 40s. My side effects are a little sleepiness and maybe some tiredness, but nothing compared to the debilitation of a migraine. However I am much more aggressive with eliminating triggers, particularly MSG and processed foods, and this helps. My better diet has reduced my need for Imitrex down to 2-3 times a month."