I've had two others this bad, but this one was the worst. At least the other two were preceded by a drunken night of partying (and were, most likely, alcohol poisoning and not migraines). But this. Pure unadulterated hell. And I can't pinpoint a specific reason.
I had gone out after work and nursed one beer in the local brewery for two and a half hours. Came home at 8:00 or so and made a quesadilla using leftover chicken. Maybe it was bad yeast in the beer. Maybe it was bad chicken. But to wake up in a cold sweat with a headache? I tried taking my migraine medication, but threw it up. Managed to go back to sleep for awhile, but couldn't kick the nausea or the headache. Lost track of how many times I hurled.
At one point I thought was throwing up the guacamole I had put on the quesadilla, but I think it was just the bile from the bottom of my stomach. Nice, bright fluorescent green. Really astounding. Couldn't keep anything down. Not even a banana which was the fix on the last two massive migraines.
Eventually, it worked its way through and I was able to keep down some toast and banana. Around 6:00 I took more migraine medication, but stayed in a prone position most of the day. A pity too. It was a nice day and I completely missed it. Still moving in slow motion today.