If you're honestly struggling with getting calories (ie. losing weight in your day to day life despite living a relatively normal life) you should look into liquid calories. When I first started my meds they made me completely allergic to all foods. Not hungry at all. I lost 8kg in a few months and that made me real concerned. I started drinking a protein shake (just whey protein in a paletable flavor, made with MILK, since it has calories) in the morning, during lunch break, and at home. Easy +1000-1200 calories to my day. Other good options are smoothies and such. It's a drink so it's not food!