World's worst bladder

I'm having to go to the loo all the time, i can need to get up half-a-dozen times some nights, and tt's the same of a daytime, I worry whenever  i go out, even to the local shops in case i can't get home in time. I've been to Urology in the local hospital. They tell me 'cos of my kidney problems i have to drink lots of water, but that means the water needs to come out.  My first visit to Urology, over a month ago, they did a 'flow test', For those that don't know...... i didn't. They put a tube up you, drain, and then fill your bladder, and wait to see how long and how much you pee. This week i've been again, similar thing but tubes and camera up both the front and back at the same time.......... and the doctor hays to me..... Don't be embarrassed !!! I said i'm embarrassed before you start.