I am a 21 year old male.I had sex with a girl who said shes been tested and two days later I noticed that the pee hole is kinda bruised and it seems like my urinary tract is kind of tingleing you can say that I feel it more now other then not feeling it at all. It doesn t burn when I pee. No cloudy discharge. And i have little bumps on the tip of my penise but they become very visable when I am erect. I masterbate often. Do I have a STD, can drugs be causeing these? I m relatively healthy, work out, eat, I m not a sickly man