Hello, I'm Concerned That I Might Have Some Form Of

Hello, I'm concerned that I might have some form of STD. I've never had sex or have participated in any sexual activities but there are some things that I'm concerned with: 1. I have had semi-continuous itching on the left side of my testicles as well as semi-continuous itching in my pubic hair. 2. There was a bump just above my pubic hairs. That bump went away and now there is a bump on my inner buttocks. I know I'm probably overacting but I just want to make sure. Thanks!