question: I am 33y/o and have had several short reoccurances of A-fib triggered at night as well as with a deep inhilation most recently, which self converted back to sinus rhythm after 60min. and a hot shower. I have been using a albuterol inhaler for many years. Could the affects of improper inhaler use have caused my A-fib??? I am following a cardiologist's regimine of cardizem but am relucant to start flecanide as I have no occurance of flutter/a-fib since stopping the albuterol.  With elimination of causes, can my heart repair itself via consistent exercise and lifestyle modification???? or are the improper eletrical channels permanent and ever-present???