Nope. The stones were tiny enough to pass through the body's waste system. Within a week of changing his diet to safe (and unappetizing

) foods, the incidence of kidney stones dropped to almost nothing. But, it came back whenever he ate the forbidden foods. That kept happening until he started to lose some weight. Once he lost some weight (20-25 lbs), He was able to resume eating small amounts of the forbidden food.
He was the grumpiest person I ever saw during his ordeal. So, I knew kidney stones aren't to be taken lightly.
He had some medication during the observation period.