Thanks for your query.Based on the facts that you have posted it appears that you have pain in loin and burning micturition since 2 days .
Most likely this could be due to presence of stone in your kidney
Please consult qualified urologist
for clinical evaluation and get following basic tests done .
1)Urine routine and culture to confirm UTI .
scanning of the abdomen to rule out urinary stone
Take some broad spectrum antibiotics and anti spasmodic after getting prescription from your family physician.