I'm in the same boat, kid. I had a "spell" of that myself last night and immediately thought of your thing. Drives me nuts too. I was just sitting here watching the baby bunnies and, bam! There it is. My BP is fine, my heart is fine, respiratory, fine. I don't get it either but I hate it.

My late friend, Myrna, was a nurse and she told me that a few hard coughs would help it end. That was years ago and now the coughs poop me out too!

You were up pretty late so I'm guessing it kept you from sleep?