It's funny people mention nausea inducing headaches too, because i have that as well. Was playing Red Dead 2 earlier, and it had just stopped raining in the game, then the sun came out, and the ground became reflective due to all the wet mud, and good lord, i almost clutched my eyes and fell out of bed from the agony of looking at it.
Also i'm extremely sniffly and keep sneezing, but i have no idea why. It sort of feels like hayfever, but that seems unlikely in the middle of winter.