Lupus can cause problems in swallowing but not vitamin B 12 deficiency which can also cause problems in swallowing. Vit B12 deficiency causes feeling cold, tiredness, dizziness etc. Low intrinsic factor in gut that hampers absorption of B12 and causes pernicious anemia is the commonest cause of low B12. If this is so then increasing intake of B12 will not help, and you will need to take Vitamin B12 injections at regular frequency as prescribed by your doctor. Other causes of low B 12 are parasites in the gut, diet poor in Vit B12, Crohn's disease, IBS, or poor metabolism by liver are the causes behind it. Please consult a doctor to rule these out. Take a diet rich in Vit B12 which should include meat and animal products, cheese, such as beef, liver, salmon, cod, and eggs. Take B12 supplements and breakfast cereals fortified with vitamin B12. Finding the cause is important. Take care!
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