There are many causes for glucose to rise, high anxiety is one of them. Try to locate and attend a diabetes education class. Check with your local hospital as they routinely offer free seminars.
I have just checked something out and I have all the symptoms of Reactive Hypoglycemia , apparently cut out the sugar, well thats what I am going to do, I will let you know how I feel ..
I have the same but no panic attacks , it all to do with eating I believe ..