dangers of b12 injections Common Side Effects From Vitamin Shots Vitamin B12 Side Effects -
Description
It is advised to consider seeking medical advice if you have any of the following symptoms accompanying your muscle spasms: Severe Discomfort If your muscle spasms are disrupting your daily activities with intense pain and discomfort, it could be a sign of an underlying condition or muscular disturbance that needs medical attention

The shots help raise B12 levels quickly

6 Bartleson JD, Maus TP
The answer depends on several factors, including the cause and severity of deficiency, your overall health, and how long symptoms have been present
Pregnant and breastfeeding individuals have increased requirements for many B vitamins, and indeed these vitamins are routinely included in prenatal supplements

Great question