ESWL 3 weeks ago, now getting pain in the opposite kidney

11mm stone in my **right** kidney, had 2 rounds of ESWL so far. Since last session, very mild intermittent aches on right side, mild ureter pain for weeks but no evidence of passing anything. For the past week or so, my **left** kidney (opposite to the stone side) has been a bit cramping and aching, often with “zaps” or “jumps”., especially upon waking and late night.

Urologist and emergency dept told me (leading up to first stone diagnosis and after first ESWL session complications) that unless I actively have renal colic episodes, they won’t investigate/scan (thanks nhs, very helpful…).

Discomfort on left side is now equally as often as on the right side.

Feeling so anxious that there’s a problem in the opposite kidney now. Just looking if anyone can give perspective or advice.