up and down with stress

My grandmother has Type II diabetes and has had shingles for a few months. It has caused her to lose weight due to lack of appetite and the inability to keep food down (due to meds). Her glucose was flucuated from normal to high when she was not eating. She has gotten an appetite back for almost two weeks. Her glucose was very low dispite her eating more regularly. Now it is very high.  This morning it was 46, this evening it was 204. Is this normal or what can be done to help stablize her glucose? Does stress play a major role as far as glucose?

[WaveRider]

"Is this normal or what can be done to help stablize her glucose?"
Here's a link to Glycemic Index foods. Proper nutrition goes a long way in controlling diabetes.
http://www.mendosa.com/gilists.htm
You should also discuss her health and diabetes with her doctor.