Hi, I was diagnosed with bacterial vaginosis and have been on metronidazole for 5.5 days. I am having frequent, urgent urination, and there is bladder pain at the end of urinating. It feels as though my bladder never quite empties, too. It had gotten slightly better and I just I have another day and a half of the antibiotic, but it's so uncomfortable tonight that I cannot sleep. I did take a Benadryl before bed because my allergies have been bad...Could it be the Benadryl, the metronidazole, or something else?? Any suggestions for how to alleviate the discomfort tonight would be much appreciated. Thanks so much for your time!