Thoughts/advice appreciated

Hello, everyone! It has been a few years since I have been here on these boards and have been lurking around for a few days reading posts as the memories of my battle come flooding back. The support given to each other on these boards never ceases to amaze me. I remember that this was my lifeline for strength, knowledge, honesty and comfort-the place where people didn't have to imagine how I felt-they knew! So, I had a very tough time with diep reconstruction-life threatening issues that began with pulmonary embolism during the surgery. Due to blood clot, I couldn't take tamoxifen. I had about 15 surgeries (full blown under anesthesia)trying to scrape out 3 life threatening infections in my abdominal wound and developed a hernia from breast bone to pubic bone which I had surgery for a couple years later. Onc tried shutting my ovaries down with shots...my body would not respond. He used a triple dose...but still couldn't. I had a complete hysterectomy a couple years ago. All of the surgeries took a crazy toll on my health-mentally and physically, and I felt like I had to be done with this whole thing after my hysterectomy. I didn't go back to my onc...after all...I was a year from the magical 5 year mark, and I needed to be DONE. A year ago, my doc was reading notes in my chart that said I had to go back to my onc after my hysterectomy to be put on a post menopausal hormone therapy (I dont remember him saying that-but I was in a complete mental fog back then-my memory is very sketchy during that whole period of time). I didn't go because I was now at the 5 year mark-5 years untreated with hormonal therapy...why would I subject my body to all of those side effects when I finally feel back to my old self? Not to mention, I felt I missed the critical time to receive the therapy. So, I joined a fitness boxing class for my 50th birthday a couple of months ago and dropped 20 pounds. One morning about 4 weeks ago, I noticed my upper left shoulder blade/back was sore and my left arm kept going numb, tingly, pins and needles sensations. Nothing improved after a week, so I saw a chiropractor and have been adjusted 6 times over the last 2 1/2 weeks with no improvement. She didn't order images but felt I popped a rib because that one bone (where it hurts)didn't push back on her like the others. With no improvement, I went to walk-in clinic a week and a half ago and doc thought I had a pinched nerve. Again, no imaging. Prescribed steroids and muscle relaxers. Nothing has improved, in fact-my left arm is numb and tingly about 50% of the time. So, the other day, I was watching the news and a group of women with bc were talking about mets to the spine. I did not remember it spreading there-only to the brain, liver, lungs. So, I got on google and was horrified to see my symptoms listed there. I am praying for a false alarm. I will be calling my onc on Tuesday. I would appreciate any advice, opinions as to what my onc should do/order, any similar experiences with numb/tingly left arm. Should I feel encouraged that the chiropractor and doc at walk in clinic know my bc history and didn't order imaging?