Always pick up your blood results, it gives you time to go over them and digest them. I get mine done and pick up the results before the appt so I can talk about them if I needed to (which I haven't though). She told you (as I read it) that you are failing to concentrate urine, which would have a physiological cause that should not be a blow off remark. IMHO.
I just pee a lot because I drink a lot and I no doubt have appalling pelvic floor tone. I would love a fix for that that did not involve scary adverts for class action law suits.