vitamin b12 shot

Some common signs and symptoms include:

• Decreased cognitive function, such as issues with 

• Memory or understanding

• Fatigue

• Lethargy

• Constipation

• Feeling faint

• Depression or irritability

• Headache

• Difficulty maintaining balance

• Sore, swollen tongue, which may be pale yellow or very red 

• Heart palpitations

• Mouth ulcers

• Paraesthesia (pins and needles)

• Vision changes