vitamin B12 fibromyalgia, B12 deficiency symptoms, fibromyalgia tingling B12, B12 fatigue brain fog, vitamin B12 blood test

Tingling hands. A foggy brain. Exhaustion that sleep does not touch. If you live with fibromyalgia, those symptoms sound like an ordinary Tuesday — which is exactly why vitamin B12 deficiency can hide in plain sight. It produces a strikingly similar list, and when it goes unnoticed, it can quietly make pain, fatigue and thinking…