I wish I knew,because I too have noticed an increase in discharge over the last week,accompanied by some ridiculous,hypochondriacal notion that I have cervical cancer! I 'm certain that alone is a very treatable issue.
You have some sort of Vaginitis and you need to go to the doctor to determine under microscope what type it is so you can be treated appropriately or an experienced Doc might just know from physical exam. Smell or no smell you have to be treated and once you find out what type it is then doc can advise you as to what you can do to prevent future. Men can spread it around if they are having unprotected sex with multiple partners and one of them has it also but there are other causes so but no more sex until you are treated.