Entyvio

Hi Everyone,
Have a question for those who have been on Entyvio. I asked my Doctor and he really didn't have an answer.
I've been on Entyvio for about 2 years, and although it helped my Colitis, during that 2 years I developed bladder cancer. My Dr. sid the Entyvio only targets the colon , but I'm just kind of doubtful because before this I've never even had a bladder infection or anything wrong in the bladder. It's really stressing me out and causing me to doubt everything. Thank you for listening and God bless.... I know you have your own problems. Thank you so much.
Oh, Also is there anyone who stopped Entyvio and was given a different medication that wasnt a biologic?