Ureteral stent removal alone should not cause pain in rib cage, but ache related with temporary ureteral blockage by spam or stone or clot passage which possibly occurs.
Hence, it such pain persists >1-2 days or worsens, see your urologist. How to handle such? Go to articles listed in http://formefirst.com/onDealSickness.html. More? Welcome to contact me as needed.