Below is an instruction from Human. Write a response.
    ### Instruction:
    What are the symptoms of Brittle diabetes ?
    ### Response:
    What are the symptoms of brittle diabetes? The main symptom of brittle diabetes is severe instability of blood glucose levels with frequent and unpredictable episodes of hypoglycemia and/or ketoacidosis that cause a disruption of daily activities. Three clinical presentations have been described: Predominant hyperglycemia with recurrent ketoacidosis, Predominant hypoglycemia, and Mixed hyper- and hypoglycemia.
    