Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Diabetic Neuropathies: The Nerve Damage of Diabetes ?
    ### Response:
    Focal neuropathy appears suddenly and affects specific nerves, most often in the head, torso, or leg. Focal neuropathy may cause
                
- inability to focus the eye  - double vision  - aching behind one eye  - paralysis on one side of the face, called Bell's palsy  - severe pain in the lower back or pelvis  - pain in the front of a thigh  - pain in the chest, stomach, or side  - pain on the outside of the shin or inside of the foot  - chest or abdominal pain that is sometimes mistaken for heart disease, a heart attack, or appendicitis

    