I had no reactions to Forteo but of course, everyone is different. Tymlos works similarly and is something you could explore as well.

When first diagnosed with osteo, I asked my endocrinologist to put in an order for PT for me. I was lucky in that she knew of someone who was an expert in osteoporosis who then taught me what movements to avoid and how to modify others. Sherri Betz is an osteoporosis-trained practitioner as well as Margaret Melio. You can search their videos which will get you started on establishing an exercise practice.
https://www.drsherribetz.com/
https://melioguide.com/