Hi, I am concerned because I woke up today and I have brown spots on my right hand and just a little bit on my left hand. It looks like a bad self-tan honestly, but I haven't messed with anything like that lately. They appeared overnight because I know I didn't have them yesterday. The only thing I can think of that is new in my everyday life is I recently started birth control. I am only 16. Does anyone have any idea what this could be?