I haven't a clue about the stones. I've been fortunate in that most of my kidney issues are infrequent, and minor in nature. I do know that my f-i-l used to get stones all the time, and a few were rather stubborn, but never as bad as what you describe. I cannot comprehend why you were treated the way you and your husband were. That's incomprehensible for me, for you to be "left hanging" with an "oh my ~god~" comment. Either say NOTHING or tell me EVERYTHING. None of this inbetween mamby pamby b.s., ya know?... Just my opinion, but I don't think I'd have that office do another test for you. We're praying for you and your family.
"There but for the grace of God, go I."
"... His mercy endureth for ever."