Low Ferritin Count Got Low Ferritin 8, Low Vitamin D Levels, Normal Iron Levels And Normal B12 (I'm Vegan). What's Going On?

Got low ferritin 8, low Vitamin D levels, normal iron levels and normal B12 (I'm vegan). What's going on? - low ferritin count

After the bone density of next week. The CT bone. I do not have a diagnosis of cancer, but fear that I am doing. "The bone scan on my white blood cells and anemia?