@sophie93 - I’m so sorry to read of your dilemma!!! It’s obvious there’s something really going on with you. Be diligent in trying to work with intelligent drs who are as interested as you to figure out the root cause of this bone lose at such an early age. Because you are in such a bad spot now you most likely should be on the bone builders and possibly need the sequencing discussed to get you on a better track , especially if figuring out what the root cause of all this is going to take a ton of time. Do not be talked into the Bisphosphonates at this point. There seems to me that one of your root causes is endocrine/hormone related. Maybe consult with a different endo, or consider reaching out to Dr. Keith McCormack, who wrote the Great Bones book , that’s excellent. Contact him, but at least invest in the book to understand things better for yourself . You’ll feel better about advocating for yourself once you have more knowledge!!! Good luck! Let’s us know how you make out!!!