I am a 50 year old female. I am 5'7" and 142 pounds. I was reccently diagnosed with bacterial vaginosos and have been taking 500mg of metronidazole, twice daily. Sexual intercourse is very painful and my tailbone is killing me. Allow me to mention, I waited a few months before going to the DR. Also, I am a stage two breast cancer surviver, estrgen positvive.