I was the exact same in high school. Eight hours under fluorescent light caused me to break out. In the summer months, I would wear long sleeves, because if I didn't, my arms would be covered acne breakouts. I pretty much forgot about it when I got out of school. A few years ago, I began working from home, and decided to buy some bright lighting to work in. The brightest I could find was a 3000 lumen CFL. (I shave my head these days) After one week, my head looked like a pizza, and my arms were breaking out again. I was not hot, walking a lot, leaving the house or anything. I am convinced it is the lighting. I gave the light bulb to the first person that would take it off my hands.