Hello @pmd25. I too was terrified when I was diagnosed with -2.6. The first drug offered to me was also Prolia, which when I began researching led me to Mayo Connect. I declined the drug, (and was declined by my insurance anyway), and so began my deep dive into OP...
There is a lot to learn here, and you have time and options; no need to jump at the first drug, or any drug necessarily, with your low numbers. There is a vast amount of information here to help you. You can search by topic and will find info about drugs, root causes, testing, exercise, nutrition and yes prunes.
Many of us are trying to maintain our bone with HRT. Lots about that here as well.
Take your time and get informed. The worry will dissipate, things will feel less scary! Wishing you all the best!!