Nerve pain after routine B12 injection

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Hey guys, I wanted to pick your brains. I had a normal 12 week B12 injection, which are always unpleasant but this time was different. It was much more painful than usual, but of course I look the other way when it's being done. Since then I've developed worsening pain up through my shoulder into the neck down to my fingers. I can not get my arm comfortable, cold makes it more painful and it's almost like a migraine/toothache kind of pain running down my arm. I've since been back to see my GP who has given me a course of antibiotics as he's treating it as an infection first and then take it from there. Antibiotics are not doing anything with it. Just wondered if there's been anyone in a similar situation. Thanks for taking the time to read 😃

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    HI Natasha, I'm Suzanne from the US . WE have different proticols here than in the UK? The shots you are receiving could be from scar tissue from the incertions of the needle into skin. Ive had Pernious Anemia for 29 years, and the areas Ive been giving myself injections has begun to feel stinging and pain . My DR. says its caused by scar tissue. I hope you get relief soon , wishing you all the best.

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