So I've had this odd discoloration for about 4 years now. I got it in high school out of nowhere it just showed up one day. It looks a little better when I'm tanner but it's always there. I had my belly button pierced 2 years before it showed up so I don't think that's related to it. It's flat and doesn't itch or anything and the skin feels completely normal, it just looks strange. I'll be going to the dermatologist soon because it's just getting annoying when I'm in a bikini and stuff but I was just wondering if anyone else has ever seen or experienced this? I haven't been able to find anything  nline over the years. Thanks!