A little over 2.5 weeks ago I was tested for Chlamidia, Gonorria, syphillis, and HIV after having concerns from receiving oral sex from a stranger- all came back negative. The symptoms that I had were some burning discomfort at the end of my urethra, especially after I urinated, but no discharge. The doctor who examined me said it looked like the opening of the urethra looked slightly inflamed and gave me 1000mg of azithromicin. He said there a several types of bacteria that live in the mouth that could cause an infection, was a possible cause of my discomfort, and the antibiotic will knock it out.
The symptoms disappeared after about 3 days of the exam/ antibiotics. I had no symptoms whatsoever for about 2 weeks.
I have not had any form of sexual contact since before the exam, but over the last few days have started feeling discomfort in the end of my urethra again- not burning as much as before, but a mild discomfort, especially after I urinate.
Is there a chance that an infection came back? What else might be going on?