Abnormal pain in knee joint. The knees.

I'm from delhi. 23years old girl and I am faking very abnormal pain in my knees from 6 days. I haven't walked much after the pain started the pain keeps moving in different points limited to my both the knees, sometimes the pain move outer side of the knees sometimes on the symmetrical point of my knee once the pain reached to my tibialis anterior  from my knees. It's been 3 days since I started taking few medications which included vitamins D,B and maybe calcium prescribed by a doctor i consulted but it seems like nothing working. He said that I don't need to go through a test as I was not injured though I fall straight down on my knees 30-35 days before my pain started I can't properly It hurts sometimes even in bending the knees.