HELP - ladies and dr only (SWOLLEN )?

OK SO A MONTH AGO MY WAS REALLY ITCHY AND WHITE STUFF WOULD COME OUT..SO I THOUGHT IT WAS YEAST INFECTION SO I WENT TO BUY MONISTAT 3..THE SIGNS SEEM TO GO AWAY BUT THEN I HAD THIS HORRIBLE SMELL IN MY ...SO I WEN TO THE DOCTOR AND THEY TOLD ME I HAD BV AND GAVE ME SOME PILLS TO TAKE FOR 7 DAYS...EVERYTHING SEEM TO GO AWAY BUT THE ONLY PROBLEM IS THAT EVERYTIME I HAVE MY GETS REALLY SWOLLEN..WHY IS THIS HAPPENING?..IS THIS NORMAL?..I HAVE BEEN WITH MY BF FOR 3 YEARS AND THIS NEVER HAPPENED...COULD IT BE BECAUSE OF THE MEDICATIONS I TOOK?..THANKS FOR TAKING YOUR TIME TO ANSWER..