b12 injection effects on body

Feeling worse after starting B12 : r/B12_Deficiency Other symptoms may include a lump sensation in the throat, heartburn, indigestion, and burning liquid b12 pets https://m.media-amazon.com/images/I/61nRAzytRgL._AC_UL450_SY450_QL70_.jpg Size:Full Size (30 mL)

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