Unfortunately, I am in the process of being tested for Osteocronosis of the jaw from Prolia. If I do have this awful disease the only medicine I can take is Tymlos or Forteo. The other meds will do more harm to my jaw. If you’re not aware of what this is read up on it it’s devastating. I am already in a lot of pain from it and can’t cause more damage. I’m pretty much between a rock and a hard place. My drs are very aware of the rebound effect from Tymlos going off Prolia and explained it to me. I’m off Prolia for 3 months now and they’re bringing me in for another bone density to see if I can wait any longer to start something. I am going to mention to my Rheumatologist about the CTX Blood Markers and see if I can have that test too. I live in Miami and I’m of the age that I’m on Medicare so I don’t have the expense that you encountered. I’m so sorry for everything you’ve been through. I did read the info regarding Prolia and they mentioned about a 4% chance of this Osteocronosis especially in cancer patients, which I am not. I never had any issues and now this is mind blowing. I have a girlfriend that went off with no problems. I hope I’m one of the few lucky ones. Good luck to you as well.