Thanks for writing in. I am a qualified and certified cardiologist. I read your question with diligence. Apparently your lack of sleep is contributing to episodes of atrial fibrillation
. You are taking propaphenone therefore, you ought to be on follow up with a cardiologist; who may like to an Holter and some other tests which help in further management. For example if an echocardiography
shows that LA is enlarged beyond a limit then it is usually atrial fibrillation unresponsive to drugs. Please try to get an appointment with an Electrophysiologist (A cardiologist with special training and experience with rhythm disorders of heart) for you can have an advice whether you are a candidate for radio frequency ablation procedure?. Good luck.
With Best Wishes.
Dr Anil Grover