Was going to measure my urine output starting tomorrow morning but thought i could do a short one today over 4 hours from 1215 to 415pm. From what i have read 2500mls or more is consider excess and obviously some type of issue, diabetes insipidus etc. So i thought over 4 hours i should have a urine output of about 400mls. Its not even an hour and my urine output is 400mls and i know i will pee alot more as thats what i normally do. Tomorrow i will do a full 24hr measure which will be interesting?? So far i think i can say its an issue and probably a major cause of alot of my orthostatic symptoms. As for blood sugar readings etc these are all normal and being on a low carb diet helps control this, so sugar diabetes can be ruled out. Will keep is thread updated and will use this tomorrow too for my 24hr test. cheers!!!