Even a few hairs below the skin will give you a shadow. They are typically darker under the skin than they are after they break through, because the sun tends to bleach them slightly. So keep doing electrolysis, and if you can't, then pluck.
By the way, I don't mean to minimize your concern, but what you describe is pretty normal among cis women, who often have a few dark wiry hairs on their face. They hate it almost as much as you do. And the solution is the same: electrolysis, plucking, make-up, and just getting over it. You probably know a few women with PCOS, and you might ask them what they do. I definitely know several women (including both of my sisters) who have more facial hair than I do.