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b12 injections adverse reactions How Long Do The Side Effects Of Last Why do I feel so bad after a B12 injection? Vitamin B12 injection
Description
The first case was that of a 57-year-old man referred for assessment of three to four years' history of "drenching night sweats" needing replacement of bed sheets almost on a nightly basis

This response affects some patients and can manifest in various ways, from fatigue to physical discomfort

Bito T, Okumura E, Fujishima M, et al

This places the tip of the needle in the back side of the spine
