Experiencing any of these symptoms? B12 supplementation might be right for you. Some causes of low B12 are diet, alcohol use, certain diseases like Chrohn's and Celiac Disease, and Gastric Bypass surgery, Headache After B12 Shot: 3 Effective Strategies to Feel Better The Weird Connection Between B12 Deficiency & Migraine Headaches Are You Experiencing B12 Deficiency? Vitamin B12 is essential for maintaining overall health, yet many individuals remain unaware of its critical role in the body. A deficiency in this vitamin can lead