Your doctor was pretty close to correct, except that there was no signficant risk for chlamydia from the contact you describe. The risks for gonorrhea and herpes were low, but not zero. (Barely touching the vaginal area with your penis carries no plausible risk. Any STD transmission risk that existed was from the oral exposure.)
Diarrhea after treatment doesn't change the reliability of any antibiotic. Based on that exposure, you really didn't need the treatment at all; if you had come to my clinic, we would not have given it.
As for the rest of it, whatever was going on in your urethra, your testicle (whether or not you actually had epididymitis, which I tend to doubt), and your continuing scant clear discharge, clearly it isn't a recognized STD and might not even be related to the sexual encounter you describe. Some such cases might reflect prostatitis (which is not sexually acquired) or some non-infectious inflammation, i.e. nothing that would respond to antibiotics.
The good news is that regardless of your symptoms, you can be confident you have nothing that will ever harm your health or that of a sexual partner. In any case, it sounds like your doctor is on top of things. I have nothing to add to the care he has provided.
I hope this helps. Best wishes-- HHH, MD
Both the azithromycin (the original 4 pills) and the levaquin would have cured NGU. You do not have an infection. Follow up with your doctor. This forum cannot help you further.
Can it be NGU. It is just weird to have clear liquid every morning.It really freaks me out.It seams to come out more when I lay down. If it was NGU, would the levaquin already cleared it.