My husband gets a pretty severe headache when in the sun for only 4-5 minutes, sometimes even with a baseball cap on but definitely when he is hatless. Today he was outside for about 4 minutes for a fire drill at work and his headache formed in 4 minutes of sun exposure.
20 or more minutes causes nausea and an hour, even with a baseball cap, can cause vomiting. Our summers are pretty hot and sunny (yay for me, nay for him!). I am wondering why this extreme reaction to sun happens? He did not grow up in a place with hot summers but I didn't either and I don't have this problem.
Anyone have any ideas?