I was diagnosed with IgA Kappa Free Light Chain MGUS 8 years ago (70 yo woman). My kappa has ramped up from 20 to 320 mg/L, Kappa/Lambda is 32, and IgM is normal range at 77. My neuropathy is mostly loss of feeling in extremities; I deal with that with hobbies, using my hands and feet to increase circulation and dexterity. MGUS is scary, but it is a waiting game. Perhaps that is some of the grieving process, that there isn't much one can do but take care of yourself. ResearchGate has research papers on MGUS. I keep a food log because I have celiac (gluten), and after covid last year am sensitive to legumes, dairy, and NSAIDs. Healthy diet, exercise, occasionally screaming into pillows, taking curcumin (in case that spice helps), and escape into hobbies and interests are all important.