Hard to say without seeing them, and I don’t really want to see them, be honest, but are they maybe blackheads? Google it, maybe google “blackhead” on google images and see if the images match what’s going on with your skin. They’re very common.
This is a website dedicated to the appreciation of all of the various dermatological nightmares out there. It is in many respects a catalogue (though probably not a very complete one) with an oddly fanatical following. You may find your condition here.