I am a 41 yr old female, I have experienced irregular fast heartbeats for about 10 yrs, I went into AF last friday with a rate of around 178, I was given drugs to slow the heart down but only dropped to a minimum of 90 and above and still irregular, so a cardioversion was given, everything has gone back to normal and now on clopidogrel 75mg and awaiting an Echo, is it still safe to fly?