Hello and welcome to HCM.
From your reports, it does look like there is no urinary tract infection
Also the absence of sugar in the urine is a good sign. Although I would still advice you to get her blood sugars checked, as polyuria
(increased urination) is seen in patients with diabetes
It would also be advisable to keep track of the intake and output of fluids. This would greatly assist in deciding if an abnormality is present or not.
I hope I have succeeded in answering your questions, you could write back to me anytime for further clarifications.