Three weeks ago I received oral sex(fellatio) to climax from someone who is not my primary partner. To the best of my knowledge, this woman has no STIs and as of today still claims she has no symptoms of an STI. She is the only person I've been with sexually in the past six months outside of my partner.
Several days ago, I noticed rusty, smelly ejaculate and mild swelling behind my left testicle. THERE WERE AND ARE NO OTHER SYMPTOMS INDICATING GONORRHEA(i.e. discharge of any kind, painful urination, etc.) Last year, I had a rather horrible case of epididymitis from chlamydia, so I wasted no time going to Urgent Care to be seen. I described the symptoms to my Doctor, and she prescribed doxy. I also requested a culture swab for Chlamydia and Gonorrhea. The symptoms are already beginning to ease 24 hours later with treatment(swelling has mostly subsided, ejaculate has gone from rusty to yellow but still smells, etc.)
The test results won't be back until after the weekend and I'm hoping to ease my mind at least somewhat by asking a few questions rather than research relentlessly on the internet--
1) What are the chances this is NGU rather than, say, oral gonorrhea? Could it be anything else? I'm 31, so I wouldn't think I'd be high-risk for something like an E. Coli infection.
2) Could this be a recurrence of epididymitis unrelated to sexual activity and if so, what could have caused it? Could it be chronic?
3) If it is an STI, namely NGU, what are the chances I've passed it on to my partner? Should she be tested?
Thanks for all of your help!