Remember years ago when doctors started talking about the reality that is "phantom vibration syndrome"? It's what happens when you swear you feel vibrations in your leg from your phone ringing on silent in your pocket when it really is not.
I had it. Not badly but it was there.
However, it stopped a year or so ago when I got my Fitbit Charge 2 with notifications. When that happened, I turned off all ringers on my iPhone and even the not-so-silent silent vibrating ring. All notifications either came through my Fitbit or they were not important enough to warrant an immediate notification.
But can you guess what has since happened?
I've got PVS... in my wrist. It relocated itself.