Dizziness and Breathlessness
If you are suffering from anemia due to vitamin B12 deficiency, you might feel shortness of breath and a little bit dizzy, particularly when you exert more. The reason behind is that the body lacks the sufficient amount of red blood cells to transport oxygen to other body cells. However, there could be many reasons behind breathlessness and dizziness, but vitamin B12 deficiency can be one of these reasons.