I was rushed to the ER about 3 weeks ago with an atrial fibrillation. I had collapsed in the lobby of my building. I have bouts of excessive yawning every once in a while. I yawn about once every 10-15 seconds and this can go on for a couple of minutes. I get lightheaded and hot. This has happened in the past, but I didn't really think about it until my A fib episode. Could these be related?

Summarized question: What causes excessive yawning when having atrial fibrillation?