Lower back pain on one side that increases on resuming activity after one has been lying down for a while and pain radiating down one lower limb, mainly the inner side of the thigh and
the back of the knee has been associated with kidney stones
or ureteral stones
infection is usually characterized by increased frequency of urination, pain or burning sensation during urination, lower abdominal pain of a dull. cramping type, and some amount of back pain, and blood in the urine.