Hi when i am feeling anxious why do a get a numb feeling down left side of face arm and leg....it does pass after a while?

Symptom of anxiety: You may be experiencing symptoms of a full blown panic attack which includes numbness down extremities or around the mouth, dizziness, sweating, palpitations or shortness of breath. You could also experience symptoms of a less severe episode of anxiety called a limited symptom attack and feel these symptoms. You should see a Dr. to be evaluated for other physical causes such as a TIA.