Feeling unusually tired and fatigued? Having tingling sensations in hands and fingers, or having balance and memory issues? These could be symptoms of Vitamin B12 deficiency. Get a comprehensive check with our Chronic Fatigue: Can B12 Shots Make You Tired? PA Relief Does an IV drip make you sleepy? Still Tired After Illness? When to See a Provider HCE Restore Energy with Vitamin B12 Injections in Shoreline, WA Feeling constantly tired, foggy, or run down? Vitamin B12 plays a key role in energy production and nervous system health and low levels can lead to fatigue, brain fog, and weakness.