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WebMD Symptom Checker helps you find the most common medical conditions indicated by the symptoms cold feet, morning joint stiffness, muscle cramps or spasms (painful) and numbness or tingling including Peripheral neuropathy, Hypocalcemia, and Vitamin B12 deficiency.
If the deficiency is not corrected, nerve cell damage can result. If this happens, vitamin B 12 deficiency may result in tingling or numbness to the fingers and toes, difficulty walking, mood changes, depression, memory loss, disorientation and, in severe cases, dementia.he main syndrome of vitamin B 12 deficiency is pernicious anemia. It is characterized by a triad of symptoms: 1  Anemia with bone marrow promegaloblastosis (megaloblastic anemia). 2  This is due to the inhibition of DNA synthesis (specifically purines and thymidine).