Call 999 or attend an emergency department immediately if experiencing symptoms of anaphylaxis (difficulty breathing, severe rash, swelling of face/throat, feeling faint)
Lethargy Muscle weakness Mood swings Memory loss Tingling in the fingers and toes Weight gain Though B12 is found in many different foods, including meat, eggs, and fortified grains, it may be difficult to get enough of this nutrient from your diet, especially if you are following a specific diet for weight loss
Vitamin B12 plays a vital role in helping your body produce red blood cells
Injections may sting
Neurological function: It supports the maintenance of myelin, the protective sheath around nerve fibers
By the way, even if you dont have pernicious anemia, but a severe B12 deficiency due to other causes, B12 shots are still the way to go