What Causes Body Pain With Backache?

GUD EVENING SIR,MA. AM A YOUNG OF 29 YEARS OF AGE .......PRECICELY 11-11-2011.....I WAS FEELING SOME PAIN SENSATION IN MY BODY .....I TOOK SOME OTC DRUGS .....SO IN JANUARY DIS YEAR I DECIDED TO GO FOR CHECK UP IN MEDICAL CENTRE AFTER EXPLAIN TO MY DOCTOR ....THE WHOLE SYPTOMS...LIKE BACKHEACH,INTERNAL HEAT .....SLEEPLESS NIGHT SCRACHING GENERAL BODY ...MY DOCTOR INSTRUCTED ME TO GO FOR A SENTITIVES TEST .....SO I WENT TO THE LAB ,TO DEPOSIT A SAMPLE OF MY BLOOD AND URINE ...THE URINE RESULT CAME OUT IN THIRD DAY WHILE THE BLOOD CULTURE RESULT IS NOT UNTIL TH 8TH DAY .....THE URINE RESULT SHOW THA I HAVE PUS CELL 0-2...AND ALSO INDICATED YIEDED NO BACTARIA......AND THAT OF BLOOD CULTURE AND SUB CULTURE ...AFTER SEVEN DAYS OF INCUBATION AT 36 DEGREE CENTIGRATE ...THE RESULT AS AT 11TH -O1-2012. YEIDED NO BACTARIA AS WELL ....SO MY DOCTOR PRESCRIBE AN ANTIBIOTIC FOR ME ..NAME SOREX TABLET THAT I SHOLUD BE THINKING ONE DAILY ...SO I WENT FOR A SASET OF THE DRUG WHICH CONTAINS 10 PIECES ...AS I WAS TALKING THE ANTIBIOTIC I WAS RELIEF TOTALLY BUT TO MY SURPISES AFTER THREE WEEKS THE PAIN CONTINUE TILL DIS MOMENT .... URINE .........RESULT......0-2 PUS CELLL AND FEW EPITH ...YIEDED NO BACTARIA . BLOOD ....CULTURE AND SUB-CULTURE PUS CELL 0-2 EPITH CELL FEW AFTER SEVEN DAYS OF INCUBATION AT 36 DEGREE CENTIGRATA ...YIELDED NO BACTARIA