proper diet with hypoglocemia

I am hypoglocemic. I developed this during a 12 year vegetarian kick- I've since been told to eat more protien and now I eat fish and chicken. I have gained about 30 lbs since diagnosis and though I workout and watch what I eat, I can't seem to take off the weight. I find that fruit sugar is not enough to prevent the glucose drop so often I hurry to eat bread or a small piece of candy. What is the proper diet?