@colleenyoung Thank you for tagging me in to this. My path to MGUS was a little different, since I already had impaired kidney function and was watching calcium and protein levels levels. It was my nephrologist who saw something in the combination of lab work results, and sent me on to a hematologist oncologist. MGUS may be a precursor to something more serious, but many times it is not. It is formally diagnosed with specialized testing. @stuckonu, does that old report say which abnormal protein is being referred to? In my opinion, and yours may vary, I would ask to get a referral to a specialist, possibly hematologist-oncologist, for additional testing. It sounds like there has not been a definite diagnosis, only a reference to a possible condition, so for peace of mind please wait until there is a formal diagnosis.
Ginger