When to worry about dizziness with vitamin B12 deficiency

Vitamin B12 deficiency can be associated with tiredness, weakness, pale skin, a sore tongue, pins and needles, or changes in balance. Dizziness may also have a separate cause, so symptoms need context and testing rather than assumptions based on one symptom.

Sit down when unsteady and use support when walking. Avoid driving if your balance or concentration is affected. Write down numbness, tingling, weakness, walking changes, diet, stomach symptoms, and any supplements or medicines; do not start high-dose treatment without clinical advice.

Seek prompt medical advice for progressive tingling, worsening balance, new weakness, or dizziness that continues despite rest. Get emergency help for sudden one-sided weakness or numbness, facial drooping, speech trouble, collapse, chest pain, severe breathlessness, or confusion.

Ask which blood tests can clarify the cause, whether medicines or absorption problems are relevant, and how quickly treatment should begin if deficiency is confirmed.