Sudden numbness or weakness in your face ... particularly when associated with a drug side effect or systemic (whole-body) disease. Even so, PN can sometimes start unilaterally (on one side ...

Ongoing or frequent numbness in the legs can indicate underlying health issues such as diabetes, vitamin deficiencies, ...

In other cases, it might affect the whole mouth ... such as pins and needles or numbness. These symptoms may occur in different parts of the body, including the mouth. Other possible symptoms ...