Just wondering what "fullness" refers to?  Doctor called and relayed that ultrasound showed "fullness" in the right kidney and they are scheduling a cat scan....severe pain for four days...started in left back and side, now both right and left sides, pelvic and lower back/buttock area.
His understand your concern. The fullness referred to on ultrasound might be due to blockage to kidney, or what is called reflux of urine from bladder back to kidney. However, it is sometimes normal due to excess water intake just before scan or sometimes exists from birth. In order to differentiate the various causes, your doctor has asked for CT scan which give us further information.