I suggest you post your question also in the heart rhythm section. There are some real experts there who probably are able to give you some helpful answers.
after years of suffering with an irregular heart rhythm palpitations, i was diagnosed about 7 year with parexml atrial fibralation, which i get about once a month or can get one aftre the other depending on what i eat or drink fruit drinks etc or anyhtting setting my adrenalin off i have an episode but my fear is the them turning permanent and i am fed up reading different.stories some say that the ones with no heart problem do not turn ppermanent vagul i think it is, some times another will say. usually within a year and conneted to heart problems , then it will say 5 years , i really hate them so much and everytime i get an eppisode now o make them worse with this fear , they wont stop. its awful so what is correct do they turn pwrmanent after all this time aand no heart proble, its annoying different things in fact i was always told for years that a palpitation is an irregular heart beat, full stop and was even told frequently it was just anxiety then suddenly the irregular one is af, even a frien of mine who works at the hospital 30 years has the same people with palps irregular and just anxiety now af even she doesnt know why, palps have always been irregular and connected to stress,