GPS,
Your experience sounds errily similar to mine a few years back, once it started, I ended up on the bathroom floor curled in a little ball gasping for breath. I got to the hospital, ER, before entering (barely able to walk) I threw up in their outside trash bin, how nice....
Once they got a look at me, even before testing they stuck a needle in my neck of some narcotic, could have been morphine and the pain subsided, and the stone, 4 mm, passed on it's own about a week later. I have often said if you want information from your enemies, forget waterboarding, that is for woosies, give em a big fat old kidney stone instead, and hold the pain meds until they give up the ghosty (pun intended)..
Hope you had yours removed, I had one this fall, 9 mm and one blast of a laser broke it into a million pieces, looked like rock candy the urologist said. Oh yeah, due to the trauma it caused on my right side, two weeks after surgery I got a case of the shingles !!! Stress like a stone attack can bring it on. The important thing is that within forty eight hours of the onset of symptoms before it spreads down the nerves is to get on anti-viral meds which I did. This kept the outbreak from spreading. Good tip to know in case it ever happens to you. My brother in law waited over a week when he had shingles and still has residual nerve pain in the affected areas to this day on and off, so get treated right away. Ghosty... out...