I've never heard that term before in all the months I have told different doctors. It's more of a burning pain, I think..kind of hard to explain. The best way for me to describe it is a really bad sunburn across my back and arms (sometimes other areas like my stomach and legs too). Clothes and even someone touching my arm makes me jerk away. I have been prescribed meds for migraines but the pain doesnt always accompany them. When I was younger I remeber having the pain when I had a fever, now it is completly random, but always accompanied by other symptoms (blacking out, dizzyness, nausea etc.)