Ok, so I got diagnosed with BV (Bacterial Vaginoses) and I have to be on a round of antibiotics because BV can cause pre-term contractions (which I'm pretty sure I've already have had some). BUT, I've never been on this antibiotic before (Metronidazole 500 mg pill) and I was wondering if anyone has experiences with it before. When I take it in the morning within a half hour I'm running to the bathroom and when I take it at night, I'm fine. I know antibiotics can cause you to have soft bowels or diarrhea. Any thoughts?