But if untreated, it may lead to symptoms such as: Fatigue, weakness, tiredness, or lightheadedness Heart palpitations and shortness of breath Pale skin Inflamed tongue Constipation, gas, and diarrhea Loss of appetite Nerve issues such as numbness or tingling, muscle weakness, and problems walking Blurred or loss of vision Mental problems (depression, memory loss, or behavioral changes) / THE AMAZING BENEFITS OF VITAMIN B12 INJECTIONS AT COMPLEXION MED SPA INCREASES ENERGY LEVELS AND CONCENTRATION If you are constantly lethargic even after a full night of sleep, you may have need B12 shots
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Canadian Medical Association Journal 2004;171(3):2519
High-dose oral B12 is not routinely used for pernicious anaemia management in NHS practice
Longer hair can increase the risk of certain complications, such as burns
Vitamin B12 is important to maintain the health of your metabolism, blood cells and nerves