will not run down to your leg, but it may go up to groin. if the pain is radiating down your thigh and leg and aggravated by bending or movement it is a musculo skeletal pain. radiation
of sudden shooting pain can be because of nerve compression at the spinal level or futher down, you can meet your phycian . he will be able to give you the diagnosis. workup to rule out kidney disease would include, urine routine, serum creatinine
and an ultrasound
of the kidneys.