20-21 days after having protected intercourse and unprotected oral sex with a woman (who had no visible signs of cold sores) I noticed a single bump that looked like a slightly inflamed hair follicle at the base of my shaft. I plucked the hair that was growing out of the middle of the bump, watched, and waited. It's now been 6 and a half days since I noticed it, and it hasn't really changed in size or color since. Moreover, it has never been painful or itchy.
However, during this week, as I've been admittedly freaking out, I've experienced intermittent lower back pain, headaches, and pain down the back of my right leg (particularly behind my knee). In addition, yesterday I noticed what appeared to be a very small red spot right on the edge of my lower lip. I believe it felt slightly painful, but it could have also been the chapped skin surrounding it. Today, however, there is no pain, and the spot has almost disappeared. I've never had a cold sore (that I can remember), but the placement of this leads me to believe it was in fact probably a very minor one.
I apologize for the long message, but given what I've experienced thus far, is it likely that the bump on my penis is HSV-related? I'm certainly anxiety-prone, and have had what I believe were stress-related pains before, but it just seems like there are too many coincidences going on for that to be an explanation. Thanks for reading.