@positivethinking I have had peripheral neuropathy since a year before they diagnosed me with MGUS. It seems, from what I have read, that people with high Lambda (λ) type: A patient's M-protein may have lambda light chains. A low FLC kappa-lambda ratio generally indicates an overproduction of lambda chains.

It is under control only by my making significant changes to my diet, exercise, stress levels, and home treatment programs. It is now about 60-70 percent better symptom-wise after a year of modifying my diet, exercising, stress management, and taking specific supplements like Alpha Lipoic Acid, PEA, Omega-3 Fish oil, etc.