Anklerose- There are many causes of paresthesia and/or numbness ...It depends on how it manifests itself and where it is on the body etc.....Causes can range from simple inflammation to connective tissue disease....Metabolic disorders, malignancy, central nervous system disorders, toxins, hereditary conditions, infection, malnutrition,( e.g. B-12 deficiency), entrapment neuropathy. All this jargon may or may not mean anything to you......Would love to be more specific but need more info from you.
Exactly what is worrying you?
zuzu xxx