vit b12 injection half life Hydroxocobalamin IV. Biological Half-Life of Hydroxocobalamin in the Human Liver Too Much B12 Symptoms: Overdose

A healthy immune system is particularly important during the winter months when people are more likely to spend time indoors in close quarters with others, increasing the risk of illness

Tinnitus is a symptom that has been associated with a number of factors and conditions

(PubMed) Bertoia M, Albanes D, Mayne ST, Mannisto S, Virtamo J, Wright ME

When symptoms occur, they typically relate to underlying conditions such as liver disease, kidney dysfunction, or haematological disorders that cause the elevation, rather than the high B12 itself

Keep in mind when I got the ECG I was having a severe panic attack and had a heart rate of around 110 so not sure if this tachycardia caused by anxiety resulted in this assessment (I think it's an automated assessment from the machine)