Jones,
Until you have a TURBT and a Pathology report, no one has actual knowledge of the tumors. They may or may not be cancerous, and if so, they may be high grade of low grade. High grade tumors have a faster growth rate. But for now, you lack the information needed to make any determination.
You need to involve your care team with your questions and concerns. They know your situation best.
See the bellow for more info.
www.cancer.gov/types/bladder/hp/bladder-treatment-pdq#link/_27_toc
Best,
Jack