A Vitamin B12 level of 150 pg/mL is low and requires attention. To raise it, your doctor may prescribe daily high-dose oral Vitamin B12 supplements (1,000 to 2,000 mcg of Cyanocobalamin or Methylcobalamin) or B12 injections if absorption is an issue. For dietary sources, incorporate: Animal products: Fish (salmon, tuna), clams, red meat, poultry, eggs, milk, and cheese. Fortified foods (especially for vegetarians): Fortified breakfast cereals, nutritional yeast, and fortified plant milks.\n\nPlease consult your physician to determine the correct treatment plan and rule out underlying absorption issues.

I understand your concern, but difficulty walking due to a neurological issue is a broad symptom, not a diagnosis. Because causes can range from Parkinson's disease and neuropathy to spinal issues or MS, there is no single 'one-size-fits-all' medication. Taking the wrong medicine can be ineffective or even harmful. You need a comprehensive evaluation by a neurologist. They will perform physical exams and diagnostic tests (like MRIs or nerve studies) to find the exact cause and prescribe the correct targeted medication, which may also be paired with physical therapy. Please consult a specialist promptly for a safe treatment plan.