There is no research to suggest people with hypoglycemia are more likely to have attention deficit disorder or visa versa. Hypoglycemia is low blood sugar which may be a reaction to high sugar/carbohydrate foods whether or not a person has diabetes. Symptoms range from sweating, weak, shaky, difficulty in processing information to passing out. The treatment depends on whether the person has reactive hypoglycemia (needs high protein foods with fewer carbohydrates) to diabetics (needs 15 – 30 grams of simple carbohydrates like fruit juice or milk).
Attention deficit disorder covers a wide range of symptoms and the symptoms are not caused by food based on what science knows at this time. I would suggest you contact your local school and ask to talk to someone in the special education department or the school psychologist about ADD or ADHD.