Your symptoms could be related to either prostate or the stone disease, or both. Looks more like prostate issue.
We need to know how many stones, any stone blocking urine pipe, any urine infection, how is your bladder emptying., If prostate causing obstruction...etc
Ideally, consult a urologist as you may need some tests.
Below is a video which tells prevention of stones.
https://youtu.be/tNDz5H51sAU
Next Steps
urology consultation
Health Tips
in case of fever visit nearest hospital immediately.