I’m a 77 year-old female. This thread and others have educated me, with the reports about the vagus nerve’s involvement in afib—postural or otherwise— and the interrelationship of my esophageal and electrocardio issues, all discovered / identified in the past year. After years of what were probably postural PVCs and an ER dr.’s recommendation that I wear a monitor for a month, the monitor recorded and reported a 4.5 second complete electrical blockage on New Year’s 2023. It had made me so lightheaded that I’d put myself on my knees , ready to faint. Four days later my two-lead pacemaker was implanted. I really don’t notice the PVCs any more during the day and can now walk for exercise again and bend over in yoga without lightheadedness. But my recent silent reflux diagnosis, which means sleeping on my left side, among other things, conflicts with my new paroxysmal A-fib diagnosis, which was diagnosed by my bedside pacemaker monitor. So yes—postural interactions play out in my life, but I doubt it can be corrected. I have “silent” Laryngopharyngeal Reflux, with a small hiatal hernia, and thanks to these Mayo group postings am starting to understand the critical importance of the orientation of the vagus nerve in these issues. Thank you all.