Hi, I'm 15 years old and have recently found a lump on the side of my vagina, along my underwear line. It is not noticeable when you look at it, but when you press down it feels like a hard ball underneath the skin. When I first found it, a couple of weeks ago, I squeezed it thinking it was a pimple and some puss and blood came out, but there is nothing now. I am scared that it could be and STD or cancer, but have heard similar stories that it could be a cyst. I'm very worried and just want to know if you can identify what it is without me having to see a doctor.Thank you!