They did a whole heap of tests already. They tested my urine and my blood. My blood pressure is normal. For you Gryph, this is what was tested (number in parenthesis are normal values): Normal results: Sodium, Potassium, Chloride, Bicarbonate, Anion Gap, Urea, Creatinine, Bilirubin, AST, ALT, Alkaline Phosphatase, Protein, Albumin, Globulin, Calcium, Corrected Calcium. Abnormal results: eGFR: 60 (>90) Urate: 0.52 (0.18-0.42) GGT: 62 ( In the sample, proteins, white cells and red cells were present (should not be there). Leucocytes: 74 ( Erthrocytes: 60 ( Haematuria, Pyuria and Proteinuria noted. Hopefully the red cells mean its just a stone that can be got rid of. Otherwise...