what are b12 injections Sandoz Vitamin Injectable Solution - 1000 mcg/10 mL Compounded Methylcobalamin (Vitamin B12) Injection,

[6] [25] At levels only slightly below normal, deficiency can result in fatigue, headaches, feeling faint, rapid breathing, pale skin, numbness or tingling, poor appetite, heartburn, poor balance, difficulty walking, poor reflexes, blurred vision, memory problems, depression, irritability, inattention, cognitive decline, dementia, and even psychosis

Macro-B 12 masking B 12 deficiency

Vitamin B12 (Cyanocobalamin) supports energy metabolism and red blood cell formation, which helps the body feel more energized, especially in those with low or borderline B12 levels

If you take B12 supplements and your level is high, thats almost always the explanation

Alcohol can cause you to urinate more frequently, which naturally causes you to require more fluids