Thanks for posting your query.
Vitamin B12 deficiency
can damage nerve cells and present numbness and throbbing pain sensation in hands,arms or legs. It also causes megaloblastic anemia
. Vitamin deficiency
may be due to pernicious anemia
, gastritis, excessive alcohol consumption. Vitamin B12 deficiency can also occur in vegetarians, because the best food sources of the vitamin are animal products.
Take Vitamin B12 Vitamin supplements and meat,eat eggs and milk.
Get Intrinsic factor assay to rule out pernicious anemia.
Hope it helps.