Symptoms of vitamin b12 deficiency are
Isolated numbness or paresthesias.
Psychiatric or cognitive symptoms
Visual symptoms other Symptoms include subacute progressive decrease in visual acuity, usually caused by bilateral optic neuropathy and rarely pseudotumor cerebri or optic neuritis.
Rare autonomic features include orthostasis, sexual dysfunction, and bowel and bladder incontinence.
Other symptoms include lightheadedness and impaired taste and smell.
Asymptomatic neurologic manifestations can be detected using somatosensory evoked potentials (SSEP)
Nonneurologic symptoms, some of which may also reflect autonomic nervous system involvement,
Constitutional symptoms, including anorexia and weight loss, Low-grade fever that resolves with treatment... Other symptoms include fatigue and malaise.
Cardiovascular symptoms include syncope, dyspnea, orthopnea, palpitations, and angina.
Gastrointestinal symptoms include heartburn, flatulence, constipation, diarrhea, sore tongue, and early satiety...Consult physician for further examination and evaluation
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