hi there, as you rightly suggested your breathlessness, weakness and feeling faint could be due to iron deficiency anemia
. You could start with taking iron supplements
in your diet and also including foods like meat, green leafy vegetables, citrous fruits, dates etc in your diet. Get your anemia profile done which will include your serum transferrin
, serum ferritine done. Also get a peripheral smear study of your blood done to know the morphology of the red cells which can also give an idication as to the cause of anemia. Get your stool examined for ova ,cysts or ocult blood. Do get a thorough work up dine for your anemia and if your Hb levels are very low then you could also consider injectable iron therapy depending on your physician's decision. Take care.