Hi.
I had gone through your query.
You must consult a doctor.
Before we stamp it as a
panic attack, detail evaluation of heart and lung function is needed.
So go for basic test that include ECG/ECHO/pulmonary function test.
Psychological evaluation od
stress and anxiet is also necessary.
After proper assessment if it will be diagnosed as panic attack then psychiatric intervention is necessary.
Panic attack can be treated with medicine like combination of SSRI and benzodiazapine.
It won't reduce by its own.
Treatment is must.
Exercise and
meditation can be useful.
Relaxations method like deep breathing and
yoga can help.
Proper sleep and diet can help.
Stress free activity and work will be useful.
Still if you have a query then feel free to ask. .
Happy to help you further.
Thank you.