Chronic Bv and YI

Just got treated for Ureaplasma about a month ago got retested for resistance and it was negative. Then a week ago got Bv did my metrogel 5 nights. Started getting itchy and raw symptoms. Went to gyno yesterday. Tested positive for yeast. Taking fluconazole 1x every 72hrs for 3 days. But I have a fishy oder which i rarely ever do with Bv or yeast. Why do i smell fishy with no BV?? And why does this keep happening. PLEASE HELP