I had the same problem at your age and unfortunately it was diagnosed as pyelonephritis. I suggest you to read as much as you can about kidney problems and natural ways to cure them on this site before making any decisions and addressing you doctor. I would propably address any doctor just to get the diagnosis and to get my blood and urine analysed without further going for any traditional medical treatment ( Antibiotics ). Read, read and read! I am pretty sure you will find your natural cure here.
As for reducing your symptoms I would suggest to drink a lot of tea made of Uva ursi leaves(Arctostaphylos uva ursi). It tastes good and is very potent. Try to get the leaves in pharmacies.
By the way, did you suffer from urinary tract infection before you got your symptoms?