Got this from google, may be helpful.
Kidney problems
Your kidneys filter out waste and excess fluid that your body does not need. Their function is essential for good health. Many kidney conditions may be painful, even life threatening. Several of the problems that affect the kidneys and their symptoms are covered in detail below. Many treatment options and methods of prevention are available. If you find that you have many of these symptoms of kidney problems, you should make an appointment to see a urologist.
Kidney infection symptoms
Sudden onset of shaking, chills and a fever of more than 102 degrees F
Constant ache in the side
Burning sensation when you urinate
Urinating often
Fatigue
Nausea and vomiting
How do I get a kidney infection?
A kidney infection occurs when bacteria in the bladder spreads into the ureters and kidneys. Repeated infections can cause kidney damage and, later, kidney failure.
Treatment
The doctor can determine if you have a kidney infection by examining your urine for bacteria and pus cells. A kidney infection is usually treated by plenty of fluids and antibiotics. If the infection is severe, you may need to be hospitalised to receive intravenous antibiotics and fluids.
Prevention
To prevent kidney infections, drink plenty of liquids, including cranberry juice. Cranberry juice has chemicals that fight off all urinary tract infections. Wearing cotton underwear and loose clothing that does not trap heat and moisture is also a good prevention of kidney infections. Practice good bathroom hygiene by cleaning yourself thoroughly after using the toilet. Women should wipe from front to back to avoid spreading faecal bacteria to the opening of the urethra. Recurring infections may mean that there is an important problem with the kidneys and should be evaluated by a urologist.