I've noticed these small circular indentations on both sides of the center of my chest, and the skin around them is kind of reddish. It feels a little weird when I breathe, but otherwise, it's not bothering me much. The itching only gets worse when I'm out in the sun. Is this something I should be worried about? What's causing it? Could it have anything to do with a condition known as "having a of 16084"?