I've had one come up before, then it would disappear. That happened a few times, and I thought they were like, pimples or something because a few of the times i could just pop it like a pimple.
Right now, there are two of them, and they are right across from eacother on reflecting sides of my labia majora's. (so they rub against eachother, which makes me worry that it could be a virus).

I checked online about information of std's, haven't found any pictures that match. And I'm not sexually active.

So, questions:

is it possible that they are just pimples? Or what?

They aren't painful at all, just...there.. so if they don't go away in a week then i'm going to go see my doctor.