Good luck on your surgery, hope it improves things for you. I am dealing with a different kind of bladder problem, mine was destroyed by 39 fautly radiation treatments nearly 4 years ago, ended up having my bladder bypassed with a Urostomy. I have constant bladder spasms despite a non-functioning bladder. They are contemplating removing my bladder entirely, but with the radiation damage, its a very long, complex, and risky surgery.
Please don't give up hope, perhaps things will start to get better for you, that's a lot to go through.
Will be thinking of you.
david