I have passed 2. Like a really bad tooth ache deep inside that feels like it should get better with curling up into a fetal position but just doesn't get better.

Also, I have taken care of literally hundreds of patients with stones at this point in my career. Fortunately, they usually respond well in the ED to IV fluids and enough narcotic meds IV. Then they either pass "on their own" with plenty of fluids and oral pain meds, or if they are bigger than 6mm the urologist goes in through the willie (not the boat type) and blasts them into smaller pieces or retrieves it directly.

Reader's digest version.

Ouch!