Not that I would have your card specifically but I believe the source of the problem is still the same. Welcome to the club. I can't tell for 100% if it is temporal dithering we're dealing with here, but I believe some form of it yes. I can even imagine something that makes the card not process the full image in each frame which boosts their performance.
As for me where I am kind of "unique" compared to the average population and why I believe I personally have these symptoms is my sensitivity to motion - back in the CRT days I was suffering incredibly in front of 60 Hz CRT monitors and I could "detect" up to 85 Hz easily - only the introduction of 100Hz and beyond solved all my issues. I could detect flickering on plasma displays where most of the people I know were saying they can't see anything.
What we're dealing with here is not usual flickering, this is different, but it is some form of image instability. All LCDs have unstable image to some extent by definition, but this is simply too severe and our eyes and brains are trying to protect us…