low b12 even with injections Vitamin deficiency symptoms and testing The Truth About B12 Injections:

While not a treatment for anxiety, B12 supports nervous system health

This is a type of anemia that is often distinguished by the lack of an intrinsic factor

While many people describe it as a ringing in the ears, for some it may sound like high-pitched hissing, low-pitched roaring, chirping, screeching, buzzing, or humming

What we do know is that a combination of factors can lead to these systems being damaged including genetic defects in metabolic and detoxification pathways, external stressors from things like infections, toxins, heavy metals, and mental or emotional trauma

(June 2013)

Beyond-use dates may vary depending on the specific formulation