[2] Campagna, R., et al
[20] Pernicious anemia may be present without a person experiencing symptoms at first, over time, feeling tired and weak, lightheadedness, dizziness, headaches, rapid or irregular heartbeat, breathlessness, glossitis (a sore red tongue), poor ability to exercise, low blood pressure, cold hands and feet, pale or yellow skin, easy bruising and bleeding, low-grade fevers, tremor, cold sensitivity, chest pain, upset stomach, nausea, loss of appetite, heartburn, weight loss, diarrhea, constipation, severe joint pain, feeling abnormal sensations including tingling or numbness to the fingers and toes ( pins and needles ), and tinnitus, may occur
Vitamin B12 deficiency Having trouble absorbing vitamin B12 from food, lacking intrinsic factors (for example, as a result of pernicious anaemia), having gastrointestinal surgery, taking certain medications for an extended period of time (such as metformin or proton pump inhibitors), and nutritional deficiencies are all causes of vitamin B12 deficiency
They blame stress, aging, bad luck
[online] Tsermpini, E.E., Plemenita Ilje, A
