7 days ago I had unprotected anal sex. I was the insertive partner. it was less than a minute, maybe 1 minute total. Dumb thing to do, I know.
Now I have a one swollen lymph node in my neck which appeared out of nowhere. No other symptoms, and it has been there for the past 3 days.
I'm not sick, so is this really due to to the HIV infection? what other explanation could there be?