why do i feel worse after my b12 injection reddit About to start injections today getting these results. How likely am to start feeling an immediate improvement? : r/B12_Deficiency B12 injection side effects :

Drug Interactions: Inform your healthcare provider about all medications and supplements you are taking

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When the body is unable to produce as many healthy red blood cells as it needs, which is often the case with a vitamin B12 deficiency, it leads to a condition called anemia ( Anemia makes you feel weak and fatigued