They don't hurt and aren't discolored. I try to maintain very good dental hygiene. The tooth is a baby tooth, and I have its twin on the other side. Oddly enough, the twin does not have these small holes.
It looks like someone took a pin and poked the holes into the top. Very weird, and I just noticed it recently. What is this? Did I suddenly get five cavities to line the top of my tooth?
I wish I could post a picture for you all, but maybe you can shed some light on this before I head to the dentist.