Hi, I Don't Know What I Have. I Have Eaching

Hi, I don't know what I have. I have eaching and burning sensation,went to one obgyn she tested for candida, bacteria and everything else-all came back negative, but before results came back she gave me just in case t Fluconazole pills just in case thinking that I still might have yeast infection. I took these pills, but my symptoms stull did not go away, what should I do?