Hello! Thank you for asking on HCM! treating kidney stones with ESWL is a very attractive and efficacious method in many situation. it may avoid invasive trans-urethral procedures and even surgery. But sometimes it may be associated with some complications, such as pain (when small remnant stones particles move and irritate mucosa; or in extreme situations even tissue damages (when kidney stones are quite adjacent to renal parenchyma in that case hematoma, and even A-V fistulas may occur). I recommend to consult you attending physician and refer your complains if they persist. Hope to have been helpful to you. Greetings! Dr. Iliri