I feel very pain in my left side.(left back side and front abdomen).i took a ultra sound scan.the scaning says that,a 3.1 mm stone(2) in the interpolar calyx of left kidney.not only i feel too pain in le ft side,i feel also pain in my left abdomen and genital area when urine passes.i had also urinary infection before this pain and tills tiny infection.i am a 17 year old boy .i started masturbation in the age of 13.till i masturbate about 6 times in a week.Is this pain caused by masturbation ?