Doctor
About 2 months ago I had brief unprotected oral with a girl who came to my hotel room to give me a massage. She also rubbed herself on me, her vagina may have touched my penis but there was no penetration. About 2 weeks ago I noticed that my scrotum was red but thought nothing of it. Today, my right testicle is slightly swollen, not painful or tender. I think I might have tender lymph nodes in my groin. I had a vesectomy in May last year. My question is, could the oral or other physical contact given me an std that has casued epidymitis? My testicles are not sore, its just that the right one now looks bigger than the left, my scrotum is a bit red (at times, this seems to come and go). I have had no discharge, no burning, although urination over the last couple of days has been more frequent (and I recall that this happened a couple of weeks ago, over the weekend). I understand that oral sex is an inefficient mechansim to transmit stds but something is definately going on here. Appreciate the help.