That’s interesting.
I had trigeminal neuralgia for a few years - horrible problem nicknamed ‘suicide disease’ because folks have killed themselves over the pain; at the time they didn’t know much about it but may know more now (mine wasn’t the typical problem, but caused by a cracked tooth that they took forever to discover). There’s a nerve involved that starts somewhere in back of the head and goes out to each side of your face. I wonder if that has anything to do with this ‘thumping’ technique...
The ENT I went to after blowing out my ear was baffled by my explanation of the "sounds" and no idea what caused them. A neurologist may have had a clue.
So strange. My brother has trigeminal neuralgia. It’s so rare it took the doctors forever to diagnose. He finally wound up in an er and one of the doctors there knew about it because his dad had it. The drugs finally quit working on my brother and he had brain surgery 2 months ago. The kind where they drill a hole, go in, and put little silicone pillows around the nerves in that area. He says so far it’s working. No more pain.