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feel worse after b12 injection Why do I a injection? Feeling worse after B12 Injection:
Description
Mild headache

Usually found in wheats, fish, and meat
A quick b12 injection is used to treat low levels (deficiency) of the vitamin and can increase mental alertness and energy.

Learn which medications can trigger painful leg cramps from diuretics to beta-blockers and when to talk to your doctor.
