Numb peripheries can happen due to peripheral vascular disease or disorder
of the circulatory system outside
of the brain and heart. Other causes are hypothyroidism, eating disorders like anorexia, Vit B12 deficiency, Addison’s disease, adrenal causes like pheochromocytoma, anemia, Buerger’s disease, chronic fatigue syndrome and Raynaud’s disease. You will need some tests like treadmill test, color Doppler, angiography, ultrasonography and MRI (magnetic resonance imaging).