Hi, many thanks for the query!
You need to do- USG KUB empty stomach, Urine (Culture & Sensitivity),
RFT, CBC, X-ray KUB, Blood Sugar Level.
You haven't mentioned your age, about any history of fever
Till then take antispasmodics, antacids, anti-emetics, pain killers and antibiotics as per report & with your doctor's opinion.
Drink plenty of water so that at least 2 litres of urine is voided in 24 hrs.
Wish you a good health.