Well folks, looks like I'm in a bit longer - my kidney x-rays were clear, but I'm still pissing blood (yeah... thanks for sharing...) so I'm being shunted off onto another waiting list to see another consultant.
Still, the kidneys need to be kept working, and I expect that peeing is good for them, and beer makes you pee, so I'll have a glass of Leffe and a packet of peanuts please.
What? No Leffe on the NHS? Ah, make it a Guinness then, I've heard it's good for you.