b12 injections seizures Why Does Nitrous Oxide Cause Deficiency? [2026 Update] Uncommonly Missed Diagnosis of Methylmalonic

Because B-12 is charged with keeping your nerve and blood cells healthy, people with vitamin B-12 deficiencies might feel weak and tired, and they may experience more serious symptoms like heart palpitations, loss of balance, numbness, confusion, and poor memory

B12 Injections are safe and effective for most people

Feeling of pins and needles or numbness

PMID 23356970

Possible symptoms may include: Fatigue or low energy Weakness Tingling sensations Difficulty concentrating Pale skin Shortness of breath These symptoms may also relate to other health conditions, so professional medical advice is important before treatment decisions are made