Operation was 16 months ago and recently I've been experiencing severe cramps in bladder area. So bad it hurts to sit, walk lie down etc. Doctor said it could be a kidney stone but X-ray doesn't show any. Asked about cancer since I get heartburn almost every day, but PSA comes up as 0.01 so I'm told I have no cancer. Doctor then states it's due to reconstruction, but why after 16 months would this now occur? I stopped eating nuts and any roughage so I'm at a loss as to the cause and tired of the constant intense pain.