Okay so I had a tingling urethra, like an itching sensation for a while, I was treated for a UTI but that didn't work, however it went away, it came back and the doctors said my gf likely has bacterial vaginosis which caused this so I used some cream for that which worked, and it went away, yet all our STD checks came back negative, even for BV, and now the symptoms are back! Any ideas this is worrying me?