I get exhausted easily & i can feel my pulse pumping hard after minimal exertion e.g getting up stairs or carrying things. i'm anemic and underweight?

Tired: Being anemic certainly can make you tired as well as tiring easily because you are not getting enough oxygen to your tissues because of the anemia. Seek an appointment with your doctor so he can find the cause of your anemia which is probably nutritional in origin. He can give you a proper diet and medication to overcome your anemia.

Concerned: You need to be evaluated by your physician. Your symptoms are serious and need an extensive work up including blood work, chest xray and an ekg. Please call your doctor for an urgent appointment or go to the emergency department.