OREANDA-NEWS  Lack of that vitamin can cause different problems with the nervous system, pricking in a bodie, and numbness in the extremities. A human may have muscular weakness, feel disability of walking. But the lack of B12 can also may  cause problems with  eyes.

B12 deficiency leads eyelid jerking  and because of that a human begins to feel that there is something wrong with his eyes. The jerking may continue several seconds and it influences the upper eyelid. It is possible to describe this reaction as a myocoma.

So a harmless spasm can become a non-obvious sign of serious illness. Most often, women encounter with that problem.

B12 deficiency is able to lead to such problems like chorea, tremors, myoclonus and twitching, and other uncontrolled body movements.