So I've had these red dots on my skin for a while. I noticed them over a year ago, and they've since increased in number. They're present primarily on my upper-arms and chest. I would estimate that I have around 80 overall, though I can't be sure. They don't hurt, but they don't go away either.
This is a photo I found online, which basically shows what they look like:
Any idea what these might be? I'm thinking of getting them looked at by the doc, but I'm looking to see if anyone here has any ideas since I'm 99% sure they'll send me off saying I don't need to worry about it (which may well be true, but still I'd like to know why they're there!)