Below is an instruction from Human. Write a response.
    ### Instruction:
    What are the symptoms of Diabetes ?
    ### Response:
    Diabetes is often called a "silent" disease because it can cause serious complications even before you have symptoms. Symptoms can also be so mild that you dont notice them. An estimated 8 million people in the United States have type 2 diabetes and dont know it, according to 2012 estimates by the Centers for Disease Control and Prevention (CDC).
    