They would definitely want to talk to you about anemia, but having anemia is not always urgent. It does need to be treated though. A change in diet, or prescription vitamins are some of the ways it's dealt with. After you've taken vitamin D for a while, she may want to talk to you about coming in for another blood test to see where your D levels are and to see if good levels of D have corrected the anemia (D is powerful and affects a lot of other things). So waiting to give the D time might be the reason for the delay in her calling to have you come back in.