Yes I was diagnosed with Kappa Light Chain MGUS in November. M-Spike of .5 was discovered during testing for something else. Kappa 73.4, Lambda 13.5, Ratio 5.42., no lytic lesions, but they did find a brain aneurysm. Oh happy day. Only neuropathy in toes. We are ball room dancers. It would break my heart not to be able to dance. Watchful waiting on all accounts. Trying to stay positive and live my life.