Early bladder cancer

I have just had the camera and been told I have early stage bladder cancer.  

I am having a pre op meeting this Monday. 

Although I was told its early.  Why do I have a little groin and lower tummy tenderness.  And sliight annoying twinges in my lower back on left hand side. 

The camera was zoomed x16 so it looked larger. But the growth was only small.