I have had the same experience. My doc is pushing the protein thing. Having trouble reaching the 90 grams a day. I feel malnourished and weak often. You should be able to get protein additives for your liquids. The shakes seem to be too filling but the protein lemonades, juices, popsicles, and jellos help. I must say, I am feeling well this morning. Got close to protein requirements yesterday. Seems to be the key-calories don’t seem to have an impact. Take vitamins, add protein, sip and move.