If anything other than sterile saline was added, it may have been a preservative that you had reacted to
Vitamin B12 is vital for energy, brain function, and overall wellness
However, if numbness is persistent, one-sided, or accompanied by weakness, it's important to rule out a physical neurological cause rather than attributing it to stress alone
Additionally, counteracted/attenuated were severe muscle disturbances in rats with abdominal aorta occlusion [82], tumor cachexia (severe muscle wasting) [11], and different electrolyte disturbances [54,83,84,85]
If you need B12 injections long term, you will quickly be asking yourself where to get B12 injections that is easy and affordable
Methylcobalamin is found in animal-based foods and is therefore obviously naturally occurring