Headaches! GAH

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I've been getting migraines every now and again that don't seem to have anything in common (water, caffeine, sleep, etc). I've been taking acetaminophen every now and again but even two pills don't seem to help. I feel crazy thinking that Gatorade helps me, but I've been keeping it around just in case. Is anyone else getting bad headaches? I'm 12+3, no BP issues at all. What is your fool proof method of getting rid of it?