What to do if I have an kidney stone & a double-j stent. Directly after peeing, the kidney hurts some. Is it stone or stent?

Here is ... This phenomenon usually results from the presence of stent, which induces a jeking-effect to kidney while its lower end may touch the bladder neck & sequentially transmit such irritation at the end of each urination. Such undesirable effect may ease by changing to a stent of more suitable length, but clinically maybe unnecessary because the timing for such change and a following procedures is same.