I can post the ECG where the doctor identified the sinus arrhythmia if that helps. I've also experienced a very active intestine and a lot of trapped gas since i change my eating habits 4-5 years ago. No cafeine, almost no sugar and dairy, ALOT more vegetables, fiber, oatmeal, nuts, fruits, legumes, etc.
I'm introducing Actimel with probiotics and i'll try to eat more often and in less quantities to see if that helps trapped gas and to see if the arrhythmias are cause by irritation of the vagus nerve by gastrointestinal issues. Altough i doubt that.
I've bought the Kardia ECG-Monitor from AliveCor and use it to check on my Arrhythmia. I have it practically 100% of the time with ~38,000 Pac's/day (per Holter monitor). To follow up on that result I use the AlveCor pretty regulary, but I also have an RBBB, however, this device does not show that and in that respect it is pretty much useless - it is just no substitute for a regular ECG. I have been prescribed 50mmg of Metoprolol ER with no effect and have dropped it since. The Cardiologist said: "Make an appointment one year from now, we are going to do another Echo." That's where things stand right now.