I have a 6.4 x 3.3 mm stone in the lower pole of the left kidney. I have no pain, but when put on Plavix for another reason, had blood in my urine. I have been off the plavix now for a week and a half and the blood is gone from my urine. Saw a urologist today who recommended lithotripsy. If I have not pain and the bleeding has stopped, can I try to dissolve it?