I have little erritation completely not say its pain in my lower left side near urinary bladder. I had done usb kub and found few concrete on 2 to 3 mm in left kidney and nothing apart from it. Everything is normal in usg kub. But everytime i felt little very little pain near urinsry bladder region. Please tell me reason behind it. Doctor prescribed timusolin and nilstone capsule and syrup and rock plus. I feel comfort but problem still there.