Laziness and headaches due to vitamin B12 deficiency usually improve with proper B12 supplementation and a balanced diet. Regular follow-up and taking the supplements your doctor has advised can help restore energy levels and reduce symptoms.

Vitamin B12 deficiency is commonly treated with vitamin B12 supplements, given as tablets or injections, depending on the severity of the deficiency. A doctor should decide the exact form and duration after checking blood levels and symptoms.

Tingling after two months of treatment may indicate the deficiency has not been fully treated or that another cause is present. You should consult your doctor for repeat blood tests and treatment review, as dose adjustment or evaluation for nerve-related issues may be needed.

Frequent hand muscle pain can be reduced through regular stretching, avoiding overuse, and ensuring proper hydration and nutrition. If the pain persists or is associated with weakness or numbness, you should consult a doctor.