b12 injection needle Best Vitamin Sites what size needle to use

If other vitamin deficiencies are present, they should be treated

That said, signs or symptoms that you may be low in vitamin B12 include: fatigue pale skin headaches symptoms of depression stomach issues difficulty focusing or concentrating pain or inflammation in the mouth or on the tongue burning or pins and needles feeling in your hands or feet muscle cramps vision changes Learn more: Signs and symptoms of B12 deficiency

It is a form of the vitamin

If yes, refer to the appropriate specialist depending on symptoms

Its hard to say, because theres a variety of substances that could cause such side effects to B12 injections

Vitamin B12 is a major factor in the tryptophan production process