Hi, I had a bump on my scrotum about two months ago. It was a hard bump, and I ended up popping it, and pus came out. I popped it a few times, and every time, pus came out, and the last time, there was a little blood. I have had no other symptoms in the genital region, but perhaps some other symptoms, like flu-like symptoms, and weird flashing pains all over my body from time to time. I received unprotected oral sex from a suspect girl a couple of months prior to these symptoms. Could this be an STD?