I have stones in both kidneys since 3 to 4 years. 5 mm in the left and 13mm in right kidney. Bot are non obstructive. Earlier I was under ayurvedik treatment for a year. Then I was advised to operate the bigger stone. Sometimes I experience a great pain that lasts only for some seconds. I regularly consume excessive water. I'm afraid of the operation and looking for alternatives. I have heard about Lithotripsy and Hydrotherapy. But not sure if that works for a stone as big as 13 mm. As there is no pain for the stone is not obstructing, what is the better alternative?