A brief encounter may have done me in.

I am 19 years old, I have never had "sex" before never even oral, until this new years eve. I met this girl at a party, and we really hit it off. She comes over after the party, and we are just hanging out. We start to kiss, and continue doing that for a about 5-10 minutes. at which point things elevate and in a flash her close are off and I was eating her out (this was a first for me) and I pulled out a condom and she said :"I can't have sex" and afterward she gave me a brief blowjob, 1-2 minutes. To put this into context I'm from down south, and this is in the winter time, so I have a bit of "chapped penis, and lips" so there were abrasions. Okay, now fast forward, about 3-4 days, I see a red bump appear on my lip, and I thought it was a pimple, so I picked and prodded at it. It didn't pop. After about 4 more days I started to get more smaller red bumps around my lips. I pooped some but eventually I left them alone. They did not burst on their own nor did they look like blisters or cold sores. A better perspective: I caught a bit of a cold or virus or something, prior to my encounter with this girl, and now I see white chunks on my tonsils and a slight tingle at the tip of my penis. No noticeable bumps on my lower regions that I can see, and I have looked pretty thoroughly. Any idea what could be wrong with me? I am going insane worrying over this and I need to know if I am making too much of this or what.