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Some individuals experience stinging, pain, or tingling instead of itching. Other symptoms of vitamin B12 deficiency Other symptoms of the condition are listed by Bupa as: Feeling very tired Breathlessness even after a little exercise Heart palpitations Headaches A reduced appetite A sore mouth The health organisation adds: If you have vitamin B12-deficiency anaemia, you may also look pale or jaundiced (have a yellowy tinge to your skin and the whites of your eyes)

Wu, Z., Bucher, N

Its often a sign that your cells need deeper support than oral supplements can provide

Vitamin B12 can be found in dairy products like milk and cheese and foods like eggs, red meat, and fish

Without enough B12, nerves can get damaged