If you can only eat a small amoutn of things ,make sure you eat very healthy. For instance, try bland foods as well to cut down on the nausea. If you can stomach it try Soy Milk instead of dairy, I promise it is not as bad as it sounds once you get used to it. THe protein content is really high and will help ya out. Cut out the pizza, sphagetti and fatty foods. Anything greasy is out as well as anything processed. You can also try GInger Capsules to help with the nausea, I can attest to the fact that they REALLY work. I am also on REglan( er metoclopramide

) and it seems to help me. I get really full as well after a meal of either cereal or a large dinner. Doesn't matter I get really full and tend to stay full for awhile. How is your dr having you take the REglan? Mine said once before dinner, once before bed, but that i could split it and try it before every meal. I think if your not doing this, try taking a half capsule before breakfast, full dose before dinner, and half dose before bed. IT really helped me. Also-if your not seeing a gastro dr, you need to be as they are so much more helpful. HOpe you get to feeling better!
~Shan