Numbness in Left Arm: Main Causes & What to Do Tua Sade Your body needs vitamin B12 to keep blood cells healthy and to make your nerves work right. But what happens when you run low? Here are some signs: https: wb.md 3PSgQRg Not all pain is muscular., Burning, tingling, stabbing, or electric pain could actually be neuropathic pain meaning the nerves themselves may be involved., Pain that shoots down the arm or leg, Vitamin B12 Injections Near Me in Miami Beach, FL