I may have misread your post but if you eat and still feel empty it can be magnesium deficiency. We have a third of a teaspoon of magnesium powder dissolved in juice every day and when I get the 'empty' feeling it does subside when i start taking magnesium again. Spinach, brazil nuts and other foods are high in it. We also take Zeolite once a day which locks up heavy metals in your body and safely excretes them