I have partial complex epilepsy and have a very hard time sitting in the sun for any period of time. After only about 5 minutes I get dizzy, get a headache, feel sick to my stomach...and this is with a hat and sunglasses on. Want to know if anyone else experiences this. I don't know if it is my epilepsy or my heart disease, but have had problems with being in the sun for as long as I can remember.