I'm not sure if it counts as light and dark but I have real problems if I'm in a car at night with headlights coming towards me.
My vision goes cloudy, like someones blowing smoke across my eyes and I also have this thing where my eyes don't quite move as fast as they should, it's like they take a while to catch up with what you're actually seeing but you can still see what you were looking at before as well?!
Everyone has different symptoms and I guess a lot of the time don't mention the 'weirder' ones to the neuros so maybe that's why she doesn't know. My original neuro told me that the weird sensations I get in my neck weren't a symptom but looking on here a fair few people get it!