What was your experience immediately following RT/chemo?

My husband Jeff completed 6 weeks of RT/chemo on Friday. He was told the first few weeks could be the most difficult of all and so far, things have been pretty rough. He was not able to eat anything at all for the last 4 days and yesterday couldn't even get Ensure to go down. He was admitted to the hospital and the plan is to try an endoscopy this morning. The GI doctor is not sure they'll be able to pass the scope. He's getting the feeding tube back in. He said it could be inflammation from the radiation or tumor obstructing. Jeff has lost 10 pounds in the past week and looks awful, gray and exhausted. He's sleeping almost all of the time. I'm anxiously awaiting the results. Has anyone had a similar experience after completing treatment? What was the outcome? Thanks for your input.