If you go to the ER, you’ll pay a fortune and call they’ll give you is pain meds. Been there and done that.
If the stone is small enough to pass and there is no compromise in renal function pain meds and waiting is appropriate. If the stone is large enough to be causing renal impairment and back pressure on the kidney stent placement or even percutaneous drainage of the kidney may be necessary to preserve renal function. And infection needs to be ruled out. The only way to know the appropriate course of action is to image the stone by ultrasound or CT and to do basic labs to check renal function. That has to be done in a medical setting. Your advice is asking someone to risk their kidney function.
They wouldn’t even give me pain meds at the hospital- Had to go back home and ride it out-