I am african american and I am getting light spots on my limbs. They are like freckles; some are big, some are small. I noticed that most recently they are getting larger on my lower legs. My grandmother had the same thing. I noticed as she got older, her pigment changed and she got lighter. I am almost 50 and I am starting to do the same thing. I was once quite dark, but I am getting noticeably lighter. I wear a high spf sunscreen daily. Should I be concerned?