Struggling with B12 injection frequency? Here's what you need to know If you have Pernicious Anaemia (PA) or B12 deficiency due to autoimmune gastritis, NHS guidance is clear: You should Symptoms if You Take Too Much Vitamin B12 Unexpected Skin Changes? Could It Be B Deficiency? A patient presented with unexplained skin hyperpigmentation as the primary symptom. Surprisingly, the underlying cause turned out to be vitamin B deficiency. This case Identifying the early warning signs of vitamin B12 deficiency is crucial for maintaining overall health. Common symptoms include fatigue, pale skin, memory difficulties, and anemia. #deficiency #B12Boost