Iron, I wonder if it is not was blocking my bladder right now. Because, there is always something that feels like the passage is not completely open. The only thing that retains me to go pass the exam for the bladder is the pyelography dye that I am allergic to. I know I had kidney stones for many years, and it is perhaps in my bladder for a few years now. I have still even when I do not have infections go to the washroom every hour or two during the night. What kind of tests did you have to go through before they discovered the "stone"?