Thanks for your question on Health Care Magic.
I can understand your situation and problem.
In my opinion, you should immediately
consult doctor and get done ecg and 2d echo to rule out cardiac diseases.
Your symptoms like left sided
chest pain, loosening of balance, black out spells etc are commonly seen with
hypotension and heart diseases.
So get done blood pressure monitoring, ecg and 2d echo.
You also need Holter monitoring (24 hour continuous monitoring of ecg) because you are having irregular heart beats.
So consult doctor and discuss all these.
Better to first diagnose yourself and then start appropriate treatment.
Hope I have solved your query.
Wish you good health. Thanks