Re: epithelial cells in urine
Of course I'm not a doctor, but it sounds like some sort of stone or cyst to me, and not regular kidney damage. Kidney damage not caused by stones and growths is typically not that painful and doesn't usually shoot up through the body.
Good luck to you and I hope everything goes ok.
Dxd T1 1966, 2001 dialysis, 2002 kidney transplant, 2003 insulin pump, 2008 pancreas transplant