Fishy odor from vagina & wet panties, should i be concerned?

Vaginal odor & D/C: If you have a change in color, texture, odor or amount of vaginal discharge & problems such as pain, itching burning with urination or sex or redness/swelling then It is best to see your gynecologist for evaluation & accurate assessment.

Abnormal: Sometimes disturbances to the natural bacteria in your vagina (douching, irregular bleeding, unprotected sex, etc) can allow abnl bacteria like Gardnerella to overgrow and cause a fishy odor. It's not sexually transmitted, but can be treated w/ Metronidazole(Flagyl)/Clindamycin/Boric Acid. See your GYN for a prescription and be examined for other potential causes. Nothing urgent/dangerous though.