Don't rush the eating. The ability and desire will come slowly--very slowly. And there will be setbacks like you described. I would be concerned about the chills, etc. if the doctor hasn't been contacted. At 4 weeks out, my husband was still a very sick man! He had started to feel that maybe he was getting some better but just barely! He's 1 year out this week-end and still has PEG; eats only about 1/2 c. food a day (if that much). But your patient WILL get better. It just takes a long time. My husband stayed out of work until 8 mo. after radiation and chemo. Then went back on light duty. So, you see, there IS hope; it just takes time.