Hi, I'm 16, female, and I've realized over the past 3 or 4 months I've been developing these strange patches of dry/flaky skin in many different parts of my body. I have them on my breasts, my mons pubis, lower back, abdomen, armpits, legs, arms, gluteal cleft, and a bit on my shoulder. They don't itch or hurt in any way. They're just a bit darker than my skin tone. Some that have been there for a long while look a bit purple almost (or just very very dark). They're not round bumps they're just raised piece of skin and a bit tough. I drink a lot of water every day and moisturize but nothing helps. I also eat VERY healthy food. I just very recently started going to the gym and it seemed that when I go to the gym more and more patches appear. What could this be? (oh, and by the way MOST of them are on my mons pubis.)