Okay, so I had done something bad. I totally did it on impulse, and regret it. I gave head to a 19 year old I met from Nexopia. He'd been hounding me for months, and in a moment of personal dispair, I took him up on the offer.

Now, this was about 3 weeks ago. About a week ago, I found a bump on my penis...
nothing hurt, it's not irritable, and there's only one. It looks kind of like a spider bite. I don't know what the guy had done, and I had a strong feeling he had something, but I didn't care at the time. I even asked him, although I did know that if he did have, he wouldn't have told me. What could it be aside from herpes?