Hi. I'm Having Vaginal Discharge. Its Like Cloudy White And

Hi. I'm having vaginal discharge. Its like cloudy white and it has bubbles. Sometimes when I'm sitting down or standing i feel air bubbles. I always have to wear a panty liner and change it like 3 times a day sometimes more. It also has a smell which i can't pin point. Even my boyfriend can smell it at times. I already had test for chlamydia and I took the medicine and so did my boyfriend. What could this be?