The symptoms such as easy fatiguability (loss of energy) & shortness of breath
(laboured breathing) indicates either anemia(low red blood count) or heart involvement.
Investigations like a estimation of hemoglobin
, complete blood count
will be helpful.
If everything is alright, then you need to undergo investigations like an Electrocardiogram or Stress Echocardiography
to rule out any cardiac involvement.
So...it will be better to consult your Doctor & get a proper physical examination done to find out the exact cause.
So that proper management steps could be taken.
Wishing you a Good Health. Let me know if I need to clarify further.
Thanks & take care.