What disease can cause a near constant mild discomfort after a sexual encounter in the urethra for almost 6 weeks straight?

Had unprotected vaginal sex with a girl on December 17-18 for 3 minutes each day. She had bacterial vaginosis (fishy odor).

I have tested for Hepatitis B, C and both appeared non-reactive 6 weeks after the exposure. I took a herpes IGM test for both strains 12 days after the sexual encounter and it came back negative and no lesions appeared up to date. I took 2 urinalysis tests 2 weeks after and 5 weeks after and no presence of white blood cells or any other abnormalities except a red blood cell presence in my urine that is not above the normal range. My HIV test has yet to arrive in a day or two.

My issue is that I do not understand why I have a mild discomfort in my urethra since December 26. It does not increase with urination or have any burning symptoms, there are no discharges, no sores, no rashes, no fevers, no night sweats, no vomiting, no diarrhea. Temporarily relieved after ejaculation of semen but will go back sometime in the day. The mild discomfort is also making ejaculation sooner than usual because there are more sensations and it can be considered as a tingling feeling, but not itchy. It has been there since December 26 and has never failed to show itself within the day. I have never had this sensation prior to my sexual encounter. The sensation is targeted near the base of my penis, in the urethra, near where the muscles are when you squeeze your PC muscle. Can it be muscle spasms? Or HPV? Or some bacterial infection not detected in urinalysis? Thank you