bacterial vaginitis
"My BV started after unprotected sex with a new man, (more fool me!) My doc gave me 2g metronidazole as a single dose, which cleared up the BV but then it came back. Twice. I wasn't having any sex at all, never douched, no semen involved...plenty of journal articles suggest that BV can be caused by bacteria that are sexually transmitted, I think so too!!

My doc gave me the 7 day course 400g 2x a day, symptoms cleared up, got a yeast infection, that's cleared up, now everything has been better for a month, so hopefully it's all behind me now, it was horrible! 

2g single dose didn't work & made me feel awful for 48hrs: headache, dizzy, tired, nauseous. 400g 2x day for 7 was ok, I took it with food, avoided alcohol & felt sluggish."