Hi,
With the urine sample we can determine that this is not a UTI, but it does really sound like you have some
urethritis (simply put inflammation of the
urethra). Now a lot of things can do this, and it can be as simple as a yeast infection or even your urine being too acidic and causing some irritation of the urethra.
Usually, we recommend using over the counter Cystex or Azo, these are used for UTI discomfort, but the idea works the same and it will provide some
anesthesia to the urethra. As far as potential causes, if you are noticing discharge then I would consider at least presumptively treating for a yeast infection, there is no harm in that, and it sounds like this has been caught really early. Consider the AZO or CYSTEX, that should at least give you some immediate relief.
Take care. Hope I have answered your question. Let me know if I can assist you further.
Regards,
Dr. David J. Girardi, Internal Medicine Specialist