I love the energy I get from these injections
You cannot overdose on vitamin B12
It would be interesting to unravel the sleep-related mechanisms regulated by VitB12 in future laboratory experiments
If you have neurological symptoms (pins and needles, numbness, balance issues), severe fatigue, unexplained weight loss, chest pain, breathlessness, or symptoms that are worsening, you should seek medical assessment promptly.

Patients who have undergone gastric banding should be aware of the following signs that may indicate falling B12 levels and warrant prompt blood testing: Neurological symptoms: Tingling, numbness, or 'pins and needles' in the hands or feet Difficulty with balance or coordination Memory problems, difficulty concentrating, or 'brain fog' Mood changes, including low mood or irritability Haematological symptoms: Persistent fatigue or weakness disproportionate to activity levels Breathlessness on mild exertion Pallor or a slightly yellowish tinge to the skin Other indicators: A sore, smooth, or inflamed tongue (glossitis) Mouth ulcers occurring frequently It is important to recognise that some of these symptoms particularly fatigue and low mood are non-specific and may overlap with other post-operative nutritional deficiencies, such as iron or vitamin D deficiency