I've noticed that my vaginal discharge has become stinky-sour (sometimes fishy). It started 2 mos ago and it's bothering me. No itching or inflammation or whatsoever. What could be the possible cause of this and what do I do for the odor to become normal? It's affecting my sex life coz I become conscious and all. I doubt it's std coz i only have intercourse with the same partner and he is clean and we're sure about that. I hope it's nothing serious and that it can be cured easily. Please help.