@gregk I think I’ve been experiencing the same thing. I get a fast, sporadic thumping/tapping in my right ear only that can last for hours. Very fast, very distracting. Almost sounds like when you have water in your ear and you tap your head. Does not match my heartbeat at all. And stops when I completely close/plug my ear. I can’t sleep or focus on anything when it’s happening which is very often lately. I’ve been trying some wax clearing drops and flushing with warm water to see if it will improve and also magnesium supplements. But please, if you or anyone else have any ideas or suggestions for at home relief, how to stop it or what it is, please let me know!! Thank you!