Welcome to our Forum. I agree with the input you have already received from your doctors. You clearly do not have an STI- you (as well as your partner) have been evaluated and tested for STIs and you have taken multiple antibiotics without relief, proving that this is not an STI, both based on the negative tests and the lack of response to broadly effective therapy. CPPS is a possibility (if you have not, take a look at the write-up on Wikipedia, it is quite good) and for better or worse, CPPS is not associated with STI, does not respond to STI therapy, and is not associated with harm to sexual partners. it may linger however.
My advice is as follows- I see little potential benefit for you from further testing for STIs, or to occur with further treatment of any sort. It does sound to me as though you have thoughtful, well informed physicians who are involved with your care. I would stick with them, not "doctor shop" and do your best to move forward without further concern about STIs.
I hope this comment is helpful. EWH
I doubt that an inguinal hernia would make such symptoms.
If you had NGU, the therapy you took (boththe azithromycin and the doxy) would have cured it. EWH
Thank you for the response.
Does the negative culture rule out NGU?
Also, could the inguinal hernia cause and of the symptoms?