SusanLaura I know exactly what you are going through. After three weeks of radiation and my second round of chemo I was so sick I could not eat or drink anything for 10 days. I also lost about 15 pounds during that timeframe. I started my treatment deadset against a feeding tube, but at during this timeframe I practically went in and demanded one. I used a drug called Zophran for my nausea which seemed to help. It's very expensive so check that your insurance will pay for it. I would not recommend the tablets that dissolve on you tongue though as the even the taste of the medicine would cause me to throw up. One very important thing to watch for is that you don't get dehydrated. This happened to me three times. If you start getting the shakes or feel dizzy when you stand up, tell you doctor immediately so they can get you on some fluids (via an IV line). Make sure your doctors are aware if you are not getting enough nutrition. The worst thing that can happen is to stop your treatment because you are malnourished. I know this does nothing for you right now, but hang in there, most of us have gone through what you are experiencing and trust me, there will be better days ahead.
Take care,
Randy Z.