[anonymously]

That is why I would get another opinion, asap. When she is stable, I would make an appointment with a Veterinary Internal Medicine Specialist to continue her treatment (if indicated).
It sounds like she may be experiencing pain. Or at least call your regular vet, if you think he will be helpful. Never mind, I would just go to the 24/7 vet clinic now and get an accurate diagnosis and some treatment started (if it was my dog)
Yes, it will cost a few bucks. It is what it is.