I have had two episodes. Second one, I felt the twinges coming on just like Bobby Bats said. Leave work and go to Medical City Plano ER. Starting to hurt pretty bad by the time they get me back to an operatory. Stick me in there and I don't see anybody for an hour, no doctor, nurse, pain meds, nothing. I am really hurting now, so I push the button for the nurse. 10 minutes later, one finally shows up and I tell her that I am really in pain. "OK, I'll tell the doctor." 15 minutes later, I feel like I'm going to throw up from the pain. Call nurse again, wait and wait and wait, and end up throwing up on the floor. She finally shows up and is pissed. Gets an orderly in to mop up, still no doctor or meds. She comes back and tells me to go pee in a cup to go to the lab. I labor over to the restroom, start forcing some pee out, and the goddamn stone passes. Instant relief. So, I spent 3.5 hours in an ER with no medical care and the situation resolves itself. In summary, fuck Medical City Plano ER, glad I wasn't having a fucking heart attack.