Thanks for your question on Healthcare Magic.
I can understand your concern.
Breathing difficulty in young patient (19 years) is mostly due to asthma or
heart disease (valvular heart diseases).
So better to
consult doctor and get done ecg, 2d echo and PFT (Pulmonary Function Test).
Ecg and 2d echo are needed to rule out heart diseases.
PFT is must for the diagnosis asthma.
You may need surgical repair if valvular heart disease is detected.
You may need inhaled bronchodilators (formoterol or
salmeterol) and inhaled corticosteroid (ICS) (
budesonide or
fluticasone) if asthma is diagnosed.
Don't worry, you will be alright with all these.
Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.