Sensory Symptoms Numbness, tingling, or pins and needles (paresthesia) typically distal/stocking-glove in polyneuropathy Burning pain, allodynia, hyperalgesia common in small-fiber predominant neuropathy and CIDP Loss of proprioception and vibration sense sensory ataxia, positive Romberg sign Loss of pain/temperature sensation (small fiber) risk of unnoticed wounds Motor Symptoms Distal muscle weakness (foot drop in peroneal neuropathy, wrist drop in radial neuropathy) Atrophy of intrinsic hand muscles (ulnar/median neuropathy) Hyporeflexia or areflexia (ankle jerks lost early in length-dependent polyneuropathy) Fasciculations in severe axonal loss Autonomic Symptoms Orthostatic hypotension, dizziness on standing Gastroparesis, constipation or diarrhea, nausea Neurogenic bladder (hesitancy, retention, incontinence) Anhidrosis or gustatory sweating Sexual dysfunction
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Severe muscle weakness or cramping, which can be a sign of low potassium that needs treating
Our bodies absorb Vitamin B12 through the digestive system, so individuals with gut issues, such as Crohns disease or celiac disease, may have trouble absorbing enough Vitamin B12 through their diet alone
