I don't know if you played with the display and/or monitor settings, but that might help the sonic-vision induced migraines. I know when I get migraine-like headaches, I become very photopoblic (light hurts).
My headaches are sinus triggered, so I might be able to stop them by slamming the tylenol/sudifed/cola cocktail. As I to distract myself while I wait for the meds to kick in, I will play EQ on a very very very dark screen in a dark room. I don't know if a yellowish grey would be any better then "limon-vision," but it might be worth a try untill SoE can work a fix for this.
There is no reason a video game should make a person sick in RL.