Thankyou 4 the quick response i had from my question, can i take it then that there is always a reason 4 having pain nothin found on ct mri ?

Yes: There is always a reason for having pain. Sometimes the reason is a unimportant one (when looking at the big picture of life), while other times it is a serious one. A doctor's continued evaluation can help decide which it is.

Pain in the knee is non-specific, and may be caused by a problem inside or outside the knee. At least 30% of people with knee pain have normal CT and MRI. It means that the problem is likely outside of the knee, and your doctor should be looking for something outside of knee causing pain.