@gingerw thank you.
Yes, my dad has had numerous MD visits, diagnostics, hospital stays, etc since September 2021 when weight loss & fever started. Only abnormal lab at the time was Sed rate. Then we found extreme diverticulitis on a ct & thought it was “the” answer / dx. He had surgery (2 unfortunately) for colon resection in January. 2nd surgery resulted in Ileostomy. When the weight loss started again in May we were told it would come back once the Ileostomy was reversed. Unfortunately weight loss has continued & he hasn’t been strong enough for the reversal. In the meantime numerous specialists, CTs, ultrasounds, labs, bone marrow test, endoscopes, etc haven’t shown red flags. Until iGg & k/l ratios rose, m spiked & monoclonal bands presented in July….