APPEAR TO BE SUFFERING FROM ANEMIA. TIRED, SHORTNESS OF BREATH, CHEST PAINS, LEG CRAMPS, DRY CRACKING AT CORNER OF MOUTH, PALE, SLEEPING PROBLEMS, HEAT FLASHES(WENT THROUGH CHANGE 20 YEARS AGO) , HAD GASTRIC BYPASS IN 1999. DIZZYNESS, SOME CONFUSION...BLOODWORK DID REFLECT LOW IRON, CBC SHOWED LOW RED BLOOD CELL, LOW IN VIT D...have been on pregnancy vitamins and 2000mg vit D for 2 weeks, not much change,,,should I be concerned?