I have just completed 12 months of Evenity treatment, and like you went on it due to concern about spinal fractures. My T score went from -3.5 to -2.51. The first 6-7 months were difficult as the major amount of bone growth is happening rapidly. The term "growing pains" usually attributed to kids is perhaps how to view it in an accelerated way.

I did have knee swelling and joint pain that was very challenging until month 7 and then the pain dissipated. The first five months it literally kept me up at night. I decided to stay with it as the risks to my spine would pose a greater level of pain and disability if a fracture were to occur due to Osteoporosis.

Hope this helps. It's not easy but outcome was worth it.