I'm a healthy, (almost) 21 year old male.

Before any suggests I see a doctor, I've already gone to see one. I went yesterday, took 3 swabs and I'll get my test results back on Monday.

In the meantime, I wanted to see what people thought might be going on. So here's my sexual history.

May 2006- Jan. 2008 - Unprotected sex, same partner. No issues whatsoever.
Early 2009 - Oral sex from a girl, one time thing. No issues.
July 2009 - Unprotected sex, one time thing, no issues.
September 2009-Present - New girlfriend, unprotected sex. She's clean, no issues until now.

And save the "wear a condom" comments, its not gonna fix my problem.

Earlier this week my penis started itching. I didn't think anything of it, then it started hurting a tiny tiny bit. Didn't think much of it. Then on Wednesday I noticed small white blisters on the head on my penis. They've gotten worse, and now my penis is a little swollen, and there is a puss like liquid around the tip of my penis. I don't know if it's coming from my penis or if it's from the blisters, though. So on Friday I went to see my doctor. He wasn't too helpful, and didn't know what it was. But he prescribed me with 3 things. One was a single pill to cure a yeast infection, one was a single pill to cure Gonnorhea, and one was 4 pills taken as a single dose to cure Chlamydia.

He also took 3 swabs of my penis and will give me my results on Monday. Im just wondering what you guys think this might be? I looked it up and I think it may just be a bad yeast infection. I really don't know how it could be an STD, despite the unprotected sex. Surely if I was from any of my first 3 partners I'd have seen symptoms sooner, and my current partner is clean.

Ideas?