Hello.
Thank you for asking at HCM.
I went through your history. Recurrent runny nose, cough,
sore throat etc are usually due to allergies.
I would suggest you to take daily regular montelukast &
levocetirizine for 1 week.
As you have asthma since childhood and you are also have difficulty in breathing, I would suggest you to get a test called Spirometry with post-
bronchodilator reversibility test done. This will help to know your lung function as well as status of your asthma.
Although montelukast will help in asthma, depending upon results of spirometry, you may need regular inhaled
corticosteroids.
I would also suggest regular breathing exercises and avoidance of smoke-dust-air pollution as much as possible.
Regarding
heart murmur, Echocardiogaphy will be helpful to know structure and functioning of your heart.
Hope this will be helpful to you.
Wish you best of the health.
Regards.