White discharge is usually normal and represents cervical and vaginal secretions that contain old vaginal wall cells, but you'll want diagnostics to be safe.
I'd suggest that you go see your gynecologist. IT's possible that you have a vaginal infection present and might need to get it diagnosed. But the symptoms of a yeast or other vaginal infection usually include itching and pain ... so you'll do best to SHOW your doctor what you're talking about!