Is your pain located in the rib area or right under the ribs or do you think the pain is located in the kidney area? If the pain is near the rib area the problem may be pleurasy. If it is pleurasy you will need an antibiotic. It is also possible that you have a kidney infection and that would also most likely require antibiotics as well. In any case you need to see your doctor as soon as possible.
mkh9
It could possibly be a kidney infection and as Lesley stated, you should go to the doctor asap. In the mean time drink a lot of water & cranberry juice and get lots of rest.
Go to the Dr, if it is a kidney infection that is serious and needs to be treated.. Go now