Vagina has a fishy odor (it has been like this for a month now). i am sexually active and have had chlamydia in the past is it possible it came back?

Bacterial Vaginosis: Go get checked out by your gynecologist and have a pelvic exam done b/c you might have a diagnosis of bacterial vaginosis which is a change in the bacteria of your vagina. It can be treated with antibiotics and is not sexually transmitted. http://mediphors.tumblr.com/post/106744949635/bacterial-vaginosis-is-like-bad-breath-of-the

Yes: could be back especially if having unprotected sex. Could be another type of infection too like gardnerella. See an md for exam.