We are back from the vet. She is now on three medications which should make her feel so much better. She is resting comfortably.
I was able to contact the vet the rescue group used with her, since she was there 1 month ago there was no need to duplicate tests, etc. The surprise is Brandy is 14! We hope to keep her content and happy for quite a while longer.
I want to thank all of you for your comments. Your support means a lot. We are just so happy to be able to help another dog during their golden years.