hi bddouglas. i am also very sensitive to loud noises and bright lights. they cause me more pain. i have rsd as well as fibromylagia so i don't know which one is causing this to happen, but i do know that rsd causes this as well. i'm not as well educated on fibromyalgia though. since i got rsd first i have done more research on it and have lived with its affects on me longer, but i know that fibro is also very painful just in different ways. hope you feel better soon. soft hugs.