@colleen67 I'm sorry you had such a bad reaction to a drug meant to make your life better. I am one of the "fortunates" who seems to have good enough bone density (for now) and manages to maintain with diet and exercise.
But when I read your post, it did ring a bell because my cousins use Prolia and my Mom had used it. So I went looking for the studies. I think you can take a deep breath and relax. All of the studies in the reference I found were about rebounds from long-term use, 2-10 years, and even those were relatively rare. For example, in a study of over 1000 women treated for 7-10 years, 7% had a vertebral fracture after stopping. Most of the other, smaller studies were case studies of individuals, most of whom had other risk factors like chemotherapy.

The best thing you can do at this point is probably to work with your doctor to find an alternative to the Prolia injections. Have you contacted them?
Sue