I dont like leaving the house on bright sunny days, cant do it unless i have sunglasses. and even the bright gray days of winter mess with me unless i have sunglasses. They have not caused me to seize, but they give me a TERRIBLE headache...pain as soon as the light hits me...I have noticed that riding in a car, on the interstate, ecspecially a busy one...really makes me ill....i experience the nausea that always comes with my aura...i can travel better at night, as long as I dont have to look straight on into headlights...i dont know how I will manage it when I start driving again....which will hopefully be in April!!