Hello, 5 weeks ago, I noticed some spots on my arm skin that I didn't have before, at first I thought it was some kind of sun burn or something, but the spots are not going away. This spots change color, there are some times on the day, specially at morning, when they're almost not visible at all (It could be due to different light conditions, but Im not sure).
Here are some pictures:
http://imgur.com/a/Zvw87
What do you think?