Have they done the skeletal survey...basically an xray of every large bone? This is standard test for MM and what they did for me since I have MGUS and positive light chains in blood, and therefore at higher risk for multiple myeloma. Of course, there is also the bone marrow biopsy...that is a definitive test for MM.

I think if they thought it was MM they would be doing this tests (bone survey and biopsy ASAP).