Thanks for your query
As they found nothing on EKG that's why they have ordered for a stress test
and if anything abnormal is there it will be revealed on stress test inspite of having normal EKG
I think your asthma
control is not optimal as your symptoms persist. I suggest you to consult your pulmonologist and take his opinion and get yourself examined to assess the level of your asthma control. If not controlled then your asthma treatment may have to be stepped up.