b12 injection pros and cons Oral vs. Intramuscular Vitamin in Vitamin B12 Deficiency • The Blood Project Should You Consider B12 Injections?

Once treatment is initiated, your GP will typically arrange follow-up appointments to monitor your response to treatment

So, there seems a possibility it is autoimmune BUT what about the low meat intake

Is CPT 96372 covered by Medicare

Short-Term : Improved focus, sleep, and reduced fatigue over a few days to a week Ongoing : With regular sessions (weekly or monthly, depending on your levels), B12 benefits accumulate, supporting mood, immune health, and cognitive function

There are some nerves running through the shoulder and there is always a slight chance a needle may hit a nerve if the injection location is incorrect