I thought I had better write this while the pain relief drugs are still doing their work.
I just got back from the hospital and was told its definitely kidney stones. Looks like the earliest they can operate is 26th Aug, 2009. That sounds a long time having just come back from waiting around having tests and having an IV drip in since 6 this morning.
Here is the picture the specialist drew for me. I think she really enjoyed getting to write it all in English even though I had tuned out totally after hearing the pain was going to be around for another three and half weeks.