HELLO, CONSULT AN ORTHOPEDICIAN AS PROPER EXAMINATION AND DETAILED HISTORY IS NEEDED. X--RAY LUMOSACRAL REGION AP/LAT VIEW. ULTRASOUND WHOLE ABDOMEN( KUB). TILL THAN, IT MAY BE DUE TO EXCESSIVE SITTING. GO FOR INVESTIGATION. PLENTY OF LIQUIDS. LIGHT DIET. POSTUR DURING SITTING MUST BE STRAIGHT.YOU CAN PUT AN EXTRA CUSHION. TREATMENT TABLET HIFENAC MR TWO-TIMES A DAY AFTER LUNCH AND DINNER FOR FIVE DAYS THAN REDUCE IT TO ONE TABLET AFTER DINNER. LOCALLY APPLY VOLINI GEL OR SPRAY TWO OR THREE TIMES A DAY. LIQUID CITRALKA TWO TEASPOON FUL THREE TIMES A DAY AFTER BREAKFAST LUNCH AND DINNER WITH HALF GLASS OF WATER.(ALKALIZER) I HOPE THIS HELPS YOU. O.K BYE.