Recurring yeast infection/bacterial vaginosis ?

In November I was put on PO doxycycline for an infection not related to my vagina. It gave me a yeast infection that I attempted to treat with OTC fungicides. The symptoms subsided, but I could tell I still had a vag infection because of the pain during intercourse. I finally got insurance again through my new job in feburary or march and was able to go to the obgyn where they found both yeast and bacteria. I was given vaginal Metronidazole and PO Fluconazole. The symptoms subsided briefly, but came back. So back to the OBGYN I went where I was prescribed vaginal Miconazole. (I should note that all the while I had not been washing my vagina with scented anything and I was wearing cotton panties and I have great hygiene.) The Miconazole worked briefly again and the symptoms came back. This time the OBGYN sent out a swab for a culture. When she checked the wet prep she only noticed clue cells for BV and put me on vaginal Clindamycin. A few days later they found yeast on the culture and again gave me PO Fluconazole. On my last visit I was also perscribed Boric Acid vaginal suppositories which I have been inserting once a week to balance my vaginas pH. Now here I am on a weekend with symptoms and I would really like to know what other people have done about similar situations. Thanks!!