Hi, everyone, I've seen a haematologist who is quite supportive and more aware of ME than other specialists a few times in the last year. I've had irregular blood levels which he has diagnosed as MGUS: monoclonal gammopathy of unknown significance. My IgM level is low, my IgG level is at the low end of "normal" and my IgA level is high. At my most recent visit he said the "gold standard" test to rule out myeloma...although he isn't concerned about myeloma and neither am I...would be a bone marrow test. If I'm not worried about myeloma, is there anything else such a test might reveal (that maybe he isn't aware of)? Is there any point in getting one? How much pain/stress would be involved? Thankfully, it's covered by our health care plan. Thanks!