If you vet is sure she's clear of her bladder issues, Google 'submissive dog peeing', 'submissive urination' or 'anxiety dog peeing' or any variation thereof and read up on the various ways to help her deal with her anxiety or submissive issues. There are many ways to teach her how to deal with situations that stress her and behavior modification techniques can work wonders, albeit slowly. But find a method that works best for her.
If she has weak sphincter control and/or is a bit or very over-anxious and stressed girl, who could blame her right now for trying to find relief? I mean she's faced changing homes, trying to settle into a new pack, meeting many new strangers, new vet, poking/prodding and surgery, being given medications - all kinds of new stresses. Peeing is a release for dogs - a way to deal with and find relief for whatever suddenly stressful situation they find themselves in, so finding ways to lessen and avoid(at first some) of her stressors and set her up for success can teach her other ways to deal with stress and anxieties and how to remain calm.
After using some of the behavior modification techniques with her for a couple of weeks, when she has learned that she can face these times without undue anxiety, she likely won't find the need to release her bladder so readily for the positive reinforcement you are there to readily dispense. It can take some work but there is nothing more rewarding than working with a dog that needs our help. You can change her life by helping her learn how to deal with her anxieties and frequent need to pee.
__________________  Jeanie and Tibbe One must do the best one can. You may get some marks for a very imperfect answer: you will certainly get none for leaving the question alone. C. S. Lewis |