I think this is definitely worth going to see your primary care doctor
or your gynecologist about. There are a couple different causes of vaginal discharge, and a simple vaginal exam together with looking at some of the discharge under the microscope will help your doctor narrow down the possibilities quite a bit.
A yeast infection typically results in a lot of discharge and considerable itching. There can also be burning and there may be redness of the skin around the vagina. Yeast infections are very common, and although the can recur frequently they are not usually a serious cause of health problems. In some cases, recurring yeast infections may be a sign of an underlying medical problem, most typically diabetes; however, it is important to stress that in otherwise totally healthy women, yeast infections are still really common.
Another common infection is something called bacterial vaginosis. This is caused by an overgrowth of the normal bacteria that live in the vagina, and the resulting discharge is not usually itchy, but it does tend to have a bad odor to it.
The last possibility is that this could be a sexually transmitted infection, and this is something as well that your doctor can easily test for. Please see your doctor soon.