b12 injection make you sleepy I Feel Tired All the Time. Do I Need a Shot?: Shawn Veiseh, M.D.: Family Medicine Boost Energy and Wellness with
Description
Calorie reduction and dietary changes can sometimes contribute to lower nutrient intake, which may leave people feeling fatigued or run down

The decision to maintain or increase the dose should be based on individual treatment goals, clinical response, and tolerance to adverse effects

Nov 1992

If you have elevated B12 and symptoms like fatigue, weight loss, or abdominal pain, the symptoms are likely from the underlying cause of the elevation , not from the B12 itself
