My dr found i have a vitd deficiency (20), as well as low ferritin levels. ive had extreme bouts of tiredness that is affecting my life, is this why?

Low vit d and iron: Fatigue can be the result of many many issues. Low vitamin d, low ferritin (low iron stores), anemia, depression, low thyroid, poor sleep, poor nutrition, infections, low minerals. I could be here for hours finishing this list. The way to see if you get better is to take vitamin d and iron and see if you improve. It could also be that the low ferritin (low iron store) and vitamin d are not related