vaginal odor...help!

so lately I have noticed my vaginal odor has gotten worse. I do sweat quite a bit down there especially at work, but even RIGHT AFTER I take a shower it smells extremely fishy! like my vagina has never had this strong of a fish smell before. Lately I've used Vagisil's odor block wash but it hasnt helped at all. I've used Summer's eve before and I'm wondering if I need to switch back or if you ladies know of any other products that may help? I do have some white discarge regularly but no itching so idk if I have a yeast infection and if those creams would help?? thanks in advance!!