question: I have small flat mole looking spots appearing on my forearm, (it used to be one, but in the last week I have 4 more) they will be silverish and then all of a sudden I will notice that they look like they are filled with blood, then over a week or two they slowly fade back to silverish.  I have a history of melanoma, should I be concerned with these?  They are on my right arm only.  I am a 46 yo.