@axoaxonic
Holly,
Meditating on your reply about "different words", I connected some previously unlinked awarenesses. I'm not aware of "resting tremor". My hands shake only when they require precise control - which may mean movement or stability. I guess that's "intention tremor". But while resting, and clearing my mind of planning intention, I can feel my entire body subtly pulsating at the rate of my hand tremor - but not perceptibly moving. Maybe a background level of brain spiking? When I intend an action, I lose that body awareness, and the pulsation all seems to move into the trembling hand and arm while the rest of me floats in unrelated space.
My hand tremor looks to be typical, just under 6 Hz. I did a multi year test of various CoQ10 supplements in ridiculously huge doses, and then big scoops of "Tremor Miracle" which added vitamins and other stuff. (Looks like they've changed it a lot since then.) I'd put the little iPhone with the TREMOR12 app between my palm and the big glass of liquid, and move the results to Jupyter Notebooks. Looked like the image here, you can see each sip. But no improvement over years of trying.
Maybe unrelated, but I've always consciously seen the pulsation of AC electric lights (and old CRT screens). Over 50 years ago I began converting my home and work lighting to DC. Now I'm lucky to live off-grid, where all my lighting runs directly from the batteries. Without that blessed peacefulness, I doubt I'd be able to feel the subtle background pulsation of my body.
(More thoughts being processed...)