Hello and hope you are doing well.
Understand your predicament.
But the pain could be due to recurrence of stone formation or it could be due to stricture from the previous procedure. The obstruction can cause pain as the urine tries to push through. Only a proper assessment with a urine analysis, ultrasonography and kidney function tests can help to diagnose the cause and therapy is based on this. In the meantime follow preventive measures to prevent stone formation.
Dietary changes may help prevent kidney stone formation if you are prone for it. Prevention strategies for kidney stones include - Increasing your daily fluid intake and taking the recommended daily allowance of calcium. Increase your fluid intake to the point where your urine volume reaches 2.5 litres a day. This may mean drinking up to 3 litres a day, if you live in a hot, dry climate or if you are involved in strenuous physical activity. Increasing urine volume decreases the concentration of minerals in the urine. This makes it less likely that a stone will form. Also, frequent voiding and drinking plenty of water can help prevent urinary tract infection.
Hope this helped and do keep us posted.