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But when you feel that startling flutter, pound, or skip in your chest, it's only natural to wonder, "Is it really B12, or could it be something else?" That uncertainty can easily spike your anxiety, especially when you feel like you're not getting clear answers about what's happening inside your own body

Vitamin B12 deficiency symptoms when taking metformin Peripheral neuropathy (which can feel like pain, tingling, or pins and needles) Headaches Nerve damage Visual changes Changes to the tongue Macrocytic anemia (which means red blood cells cannot be properly formed) Fatigue or exhaustion Shortness of breath Rapid heart rate Jaundice or yellowing of the skin Difficulties sleeping Depression Cognitive impairment such as slowed thinking, brain fog and memory problems Psychosis Small intestine bacterial overgrowth RELATED: Can you take too much B12

Dosage Translated from rodent studies, a human-equivalent dose of KPV would start at around 0.2mg.12 But your dose may differ

For lyophilized powder, assume 48 hours at room temperature (acceptable risk)