Today, 2 years after surgery, I pulled out one stitch.....

I really..... can’t judge this on my own, so I’m posting. About 2 years ago. I had breast surgery through an axillary incision. I even left a review here and all, and one armpit scar has almost disappeared, but the scar on the other armpit still protrudes and is red.. it’s still there...... And there’s a tiny hole .. I sometimes have a habit of squeezing pores or pulling out tiny hairs.. A black hair-root-like thing visible in the small hole in my armpit had been bothering me for a while, so today I barely managed to squeeze it and, the moment I pulled it with tweezers...... suddenly a transparent thread came sliding out.. I was startled and quickly let go of the tweezers, and it contracted and went back into the hole in the armpit scar.... I was shocked and called the hospital, and a nurse answered.. She said their hospital’s sutures are blue.... So I said it might have been blue, that I didn’t see it clearly.. that it was transparent but I was sure it was a stitch... A hair doesn’t contract and stretch and isn’t transparent, you know... Then she said the director is not someone who would remove things sloppily... Please come in tomorrow... If it’s a stitch, we’ll remove it for you... That’s what she said... But I said I was too busy with work to go all the way to Gangnam... I asked if it was a stitch, could I pull it out myself, and she said I could... So I struggled and pulled it out, and it really is a transparent and blue stitch...... The director doesn’t seem like a bad person..... and I don’t think he would have done it on purpose........ But why am I this angry..... Everyone, if it were you.... would you just let it go, or what would you do...? Doctors are people too..... I think that too, but..... Ah, why am I this angry...... I have absolutely no intention of getting compensation over one stitch, but vaguely, I don’t even know what it is, I can’t make a judgment.. Should I just let it go? If I just let it go, am I being foolish?