If you have low bone density despite walking 8,000 steps daily, it sounds like Boniva could be a good next step. I’m 5’ tall, and have been taking it for almost 3 years. I was in the osteoporosis range when I started, and in the low density range after 2 years. I will likely take a break this coming spring. I had side effects the first one- two times I took it-I had significant body pain and I wasn’t sure I’d continue with Boniva. Fortunately, ibuprofen did the trick and I powered through! The worst part is delaying my coffee for an hour, but since it’s only once monthly that’s not too bad.