One Minute Health Check

B12 deficiency signs and symptoms

This short check helps show whether B12 deficiency, an underactive thyroid or iron deficiency anaemia are possible, and whether further tests may be needed.

Your answers go to Dr Andrew Klein, who will reply within 24–72 hours. If you have had a recent blood test, please include the results. Answer yes or no, and skip any questions that don’t apply to you.

Your details

Have you had blood tests? *

Energy / haemopoietic

Weariness, lethargy, tiredness, fatigue
Disturbed sleep

Nervous system

Tremor
Loss of balance (ataxia), falls
Tingling or numbness in hands and/or feet, burning sensation
Restless leg syndrome
Dizziness
Pain in limbs
Stiffness of limbs
Weakness in limbs
Migrainous headache

Psychiatric

Irritable, snappy
Confused, memory disturbance, forgetful, fogginess (brain fog)
Headaches, migraine
Mood swings, anxiety, panic attacks
Depression

Eye, ear and throat

Blurred vision, double vision
Tinnitus
Difficulty swallowing, persistent cough

Immune system

Prone to recurrent UTI
Frequent cough or cold

Cardiovascular / respiratory

Shortness of breath
Palpitations, chest pain
Pallor, lemon-yellow complexion
Bruising

Gastro-intestinal

Sore tongue, bleeding gums
Mouth or tongue ulcers
Cracking at the corners of the mouth
Loss of appetite, loss of weight
Gastric symptoms: acidity, heartburn
Intermittent diarrhoea, IBS, constipation

Skin, hair, nails and skeletal

Premature greying
Alopecia, unexplained hair loss
Joint inflammation, swelling, pain
Dry skin, brittle nails

Genito-urinary

Heavy or painful periods, irregular periods
Loss of libido
Incontinence

Personal and family history

Family history of B12 deficiency (pernicious anaemia)
Vegetarian or vegan

This opens your email app with your answers ready to send. You can attach recent blood test results to the email.