Supplements causing vaginal yeast infection

Does anyone have an idea why every time I take a supplement of any kind (besides probiotics), I get a raging vaginal yeast infection? I have tried all kinds of vitamins/minerals/herbs taken one at a time and within a day, the pain starts and once I stop taking the supplement, the pain subsides within a day or so. I have been taking these exact supplements for years now and it wasn't until I douched with Miracle-Mineral-Supplement a few months ago that the problem started. I have tried repopulating the vaginal area with probiotics and I am scared to death to try any kind of douche at this point. Any ideas would be greatly appreciated : )

Many thanks,
Rainey