What Causes Headaches And Burning Sensation In Eyes When Exposed To Direct Sunlight?

Hi, Am thirty year old woman getting headaches after exposing to sunlight. whenever I travel long distance in bus or car i get headaches especially if the journey has humps and hairpin bends. But whenever i go out on a sunny day i get headaches and feel burning sensation in the eyes and feel warm inside the brain. Immediately i take Acetaminophen and after bathing the temp come down and i get some relief. what is the remedy for it? pl help me. .