yeast infection??

okay so i had a yeast infection & used monistat 1 day. i had no dishcharge or smell. then after using it i have a foul smelling discharge that i can literally smell when i’m just sitting at work. HELP. i’m not sure if this is from the monistat or if i have BV also??? i took diflucan for my yeast infection & my symptoms have since then subsided. now i just have fishy/musky smells from down there. wtf