l problems needs many opinions?

ok here it goes i have been with the same man for about 2years now in the last 4months i have had bv (bacterial vaginosis) and it gives me a smell now my last two periods are very irregular and not to metion ive been treated for bv twice now and it returns right after my medicine is gone but the last time i went to the doctors he said i didnt have it but the smell was there confused very he said douche itll go away no didnt help and that makes infections easier to come now the first time i had bv with him i had it for a long time and didnt know it ive had bc once before when i was pregnant 4years ago so i dunno but my period is really painful and very wierd please help im thinking it could be something else ive been tested for stds im good none of them