Thank you for the encouragement. No BMB scheduled yet. I just had the blood test done a few days ago as I have been struggling with gastritis and elevated liver enzymes for about 10 days. I had a CT scan that showed no evidence of cancer in my liver or other main abdominal organs, but this blood test has thrown me off. I don't think the M-spike is connected to the gastritis, which is getting incrementally better. I suspect that my primary doctor will be referring me to a hematologist for deeper evaluation of the M-spike and free kappa chains.