Taking too much vitamin B12 can lead to side effects. Knowing the facts before you begin vitamin B12 supplementation can help you to make informed health decisions about the vitamins you choose to take. Consult with your physician before taking B12 supplements to treat a condition. Knowing the facts before you begin vitamin B12 supplementation helps you make informed health decisions and determine if B12 supplements or injections are the right fit for you. Potential Side Effects of Vitamin B12
stupor - the feeling of distress and disbelief that you have when something bad happens accidentally; his mother's death left him in a daze; he was numb with shock. daze, shock. stupefaction - a feeling of stupefied astonishment.
lethargy lassitude torpor torpidity stupor languor. These nouns refer to a deficiency in mental and physical alertness and activity. Lethargy is a state of sluggishness, drowsy dullness or apathy: The war roused the nation from its lethargy.Lassitude implies weariness or diminished energy such as might result from physical or mental strain: âHis anger had evaporated; he felt nothing but utter lassitudeâ (John Galsworthy). The time of lethargy at Elba seems to have been more unfavourable to his powers than the cold of Russia. 2  Simultaneously with this work in the north, Tunstall circuit, having thrown off its lethargy at the Wrine Hill camp-meeting on the 23rd of May 1819, was carrying on an aggressive evangelism.