Hi @whahoo, I had to look back at my results, and mine was high at the time I was diagnosed, along with several other labs that were unexpectedly high/low. I did not have bone mets. By the point that test was completed, my body was already under a lot of strain.
Hopefully stopping the D3, helps. There are many possible causes for a spike, it doesn't always mean cancer. I'll be interested to hear how your next set of labs look. Please keep us posted.