Hemoglobin helps your red blood cells to Carry oxygen. when you have low hemoglobin your body adapts to this by pumping more blood causing increased heart rate and shortness of breath.
If you are bleeding heavily during your periods it could be the reason for your anemia.
You need to eat food rich in iron. Green leafy Vegetables, raisins, beet root, soybeans, tofu chick peas etc are rich in iron
Next Steps
if you have been prescribed iron supplements continue it.
Health Tips
several medications are available in ayurveda to correct anemia. please consult if you require further assistance