Greetings from healthcaremagic.com.
I am Dr Sourav Chakraborty and I will be helping you with your query .
I have gone through your case scenario and I do believe you need to get your self evaluated by a physician .
Please get a baseline ECG and an echocardiography
done for you which is very helpful in detecting obvious cardiac ailments .
Also do not consume coffee more as it is known to cause rythm disorder.
Clinical examination will be very valuable for you.
I assume you do not habits like drinking alcohol , smoking
as these may aggravate your problem.
Don't neglect your symptoms and visit a physician soon .
Hope I have been able to help.