Same here, as well. Sick, dizzy, nauseous. I don't normally get migranies - EVER - but suddnely I feel like I'm stabbing myself between the eyes every time I use my phone for all of a minute. I used to use (and stay on) my apps constantly all day (Instagram especially, as well as NY Times, TD Ameritrade, etc), now when I leave the house I ask myself if I really want to bring my phone with me because it's no longer a device I enjoy using to access some of my hobbies and interests, it's merely an instrument of torture.
Maybe the 12 year old girls are impressed with some of iOS 7's gimmicks, but I feel like I'm on the verge of a seizure.
Spoke with someone in Customer Service, all they could recommend is sending a message to the feedback section here. Another option, I suppose, is to switch to a Samsung S4. Nothing resonates more for Apple than an ever dwindling customer base.