why do i feel sick after b12 injection Vitamin Side Effects and Safety Why Do I Feel Worse

Shortly after my B12 deficiency diagnosis I went to a hematologist

Signs of deficiency: Irritability Fatigue Numbness or tingling in the hands and feet Depression Frequent headaches Irregular heartbeat Why I choose a B-12 injection instead of tablets

As we age, NAD+ levels naturally decline, leading to fatigue, brain fog, and slower metabolism

They are particularly beneficial for vegetarians and vegans (since B12 is found primarily in animal products), older adults with reduced absorption capacity, individuals with digestive conditions such as Crohn's disease or celiac disease, and anyone who has had gastric bypass surgery