Wonder if Doctor Kildares got a cure for Pins & Neddles
ye old ship mate Tony,
I'm experiencing no needles and pins,
just some annoying clicks and pops

That said, I'm searching (searchers

) for a cure.
Doc Gary,

Thanks for the helpful background and tips.
So far, the trigger thumb clicking I'm experiencing is
relatively mild and (not yet) very painful. I'm taking
your advice and going to try to lay off using it as much as a possible. Thankfully, when playing in arr. mode, and merely using my LH to trigger chords (full-fingered)
it doesn't really necessitate bending my LH upper thumb joint much, so I'm still able to play & perform on the arranger without irritating the LH thumb joint. If it were in my right thumb, it would have been another

story.
I've found soaking my hand in warm water helps and even made the trigger thumb click go away, albeit temporarily. Thanks for your recommendation about adding epson salts to the water. I plan to pick up a box of that (along with a thumb stabilizer) today at my local Walgreens/CVS pharmacy. Hopefully doing all this will tide me over till I see my doc next Tuesday.