migraine
"I get about 4 migraines/tension headaches per month and have since I was a kid. If caught early enough, I can make do with just caffeine pills and an aspirin, but when things get bad I'm reaching for my Excedrin migraine. I've timed it to 20-25 minutes to fully take effect, if it works. Sometimes, though, it is not quite strong enough and I have to use other methods to calm the pain (dark room, ear plugs, pressure points, etc). My migraines have no aura to speak of- just a little bit of wooziness as a warning-  and nausea is mild, so mainly concerned with the pain and accompanying sensitivity to light and sound. Excedrin helps with those at least."