I think we often jump to the worse case scenerios when we make our decisions. Yes, they might happen but there are a lot of other actions that could occur. We also think that we must make out decisions alone.
I am on a drug similar to Boniva. I've taken it for two years with some improvement. My over active parathyroid gland contributed to my osteoporosis. Once it was removed the bone loss stopped. Have you had your parathyroid hormone level been tested? It doesn't change the fact that you have bone loss, but I can't imagine that your new medication will help as much as it should.
The quality of your life matters!