Letrozole - Fracture in spine

Hi, a couple of weeks ago I posted about pain in my bones in my ribs and needing a bone scan. At the time the doctor was checking on bone mets. 

Well I don't have bone mets which is great but the bone scan revealed a fracture in T9 of my spine and osteoporosis. This is scary because I have not even injured myself. I do recall picking up my 15 month old grandson and feeling pain which prompted me to get more tests done. 

My ongoing treatment is Letrozole. I have only been on this for 6 months after switching from tamoxifen because of adverse side effects from that drug  

I had a bone density taken before I started tamoxifen in November of 2020 and it was perfect at that time. So in the last 2 years of treatment my bone density has taken a big hit. Spontaneous fractures are a bit of a worry. 

My GP gave me an injection today for the osteoporosis which I will now have every 6 months as well as taking vit D and caltrate with K2. I also made an appointment with my oncologist for Tuesday. 

Just wanted to see if fractures have happened to others on AIs?

Also a reminder to keep an eye on bone density.