I had sex with my girlfriend for the first time about 3months ago, and we have been having regular sex since, never with a condom. Less than a month ago, i noticed my left groin lymph nodes were swollen.the right side is not at all. about 2 weeks ago i had a small itchy patch of bumps which i thought was poison ivy, as i had been doing yardwork, and then touched my penis when i went to the bathroom. it went away, now 2 weeks later in the same spot there is an itchy, painless patch of bumps about the size of a pea. the spot is located at the base of my penis on the left side of my scrotum. im getting real scared, if anyone could give me any kind of information that'd be great.