Dear Bambamm,
I have gone through your case history. Medullary sponge
kidney (MSK) predispose to recurrent
kidney stones and urinary tract infections. First I would like to find out what is cause of pain?
In your case, probable cause of pain is either the stones or a hematoma. If a hematoma is causing the pain, It needs to be surgically drained. Decompression will relieve the pain.
As for your stones, I think surgical procedure is the best treatment to relieve pain.