Cos I know I have some knowledgeable readers.
So right now I am sitting in a darkened office, with brilliant jagged geometric shapes floating in my right visual hemisphere. Having just taken my Maxalt, I am hopeful that they will disappear soon, and that they will not be replaced by an exploding horrific headache.
But the questions…
This time, the colors are different from earlier visual migraines. Less bright colors, sometimes appearing to be a palate of grays. It also appears more melty than usual. Oh, and this one is confined to my right visual hemisphere.
So, does that mean vascular activity in left occipital lobe? Or could it be elsewhere in the various visual pathways? More generally, could one conceivably map the location in the brain where the migraine activity is happening by attending to the visual phenomena? (Has this been done?)
The NYTimes had (has?) a blog on migraine art; there is quite a lot of variation. I tend to get the current effect (location varies, as does color scheme now), and occasionally a different sort where it looks like I am viewing the world through a cracked stained-glass window. Would different sorts of visual experiences imply different, and specifiable, brain areas of vascular weirdness.
Signing off now–my right eye is beginning to throb, which is not a good sign.