Don’t do anything yet, wait for that blood test. Anything you do now won’t help if the problem is something else. She may have to go on a lower protein diet, but homemade to make sure that all the protein is good quality is still the best for her. Drinking more water may be her body’s attempt to eliminate the extra protein or may be her attempt to regulate her pH, which can get messed up if it really is a liver issue. I’m glad your vet is on top of things with yearly blood work, you have no idea how rare that is.
