Planning a physical soon with my primary just for general checkup, but in last week have been lightheaded and dizzy on three separate occasions. I have a history of anemia even when not obviously flaring so would it be more appropriate to call hematologist who gives me my B 12 and iron infusions instead, even though I am NOT tired which is usual red flag? I will definitely call one of them tomorrow, just not sure who makes more sense. I should also add I have lost ten pounds in past six weeks by cutting back on desserts and snacks and increasing my walking. Too fast?