Size of the stone is too large , as it is in the
kidney it is not giving you intense pain . once it come in ureter it wil give intense pain as size of stone is larger than the passage of ureter .
AND ENDOSCOPY IS NEVER DONE FOR RENAL STONES.
Next Steps
consult urologist , get your RIRS done(BREAKAGE OF STONE THROUGH LASER) than you can take a help of homeopathy to resolve a fragmented stone .
Health Tips
for more details you can consult me on practo.