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Originally posted by benevolent tyrant
Sometimes, before I get a migraine, I will develop a prodromal aura or other visual disturbances. Migraine sufferers report seeing "zig zag" lines or even actual holes in their vision before migraines. At times, I have had similar disturbances. My most typical cue that a migraine is on it's way is a peculiar type of aura that I can see. Objects will suddenly have an aura or halo surrounding it. Colors will be more intense, almost looking like dayglo. This can be rather disconcerting as, at this point, I can no longer safely operate a motor vehicle. One consolation is that I find this prodromal visual disturbance to actually be quite beautiful. I can see the most wonder kaleidescopic effects. Unfortunately, it also means that a headache is on it's way. Again, this is the time when I would take "preventer meds" or even begin taking my pain-killers.
And then there are the migraine triggers: like Boondock mentions, hotdogs
Also called Pesach, Pesah. a Jewish festival that commemorates the exodus of the Jews from Egypt and is marked chiefly by the Seder ritual and the eating of matzoth. It begins on the 14th day of Nisan and is celebrated for eight days by Orthodox and Conservative Jews outside of Israel and for seven days by Reform Jews and Jews in Israel.