Roger, I’ve posted this before. You need a wrist immobilizer. Yes. Wrist.
Ask me how I know.
You need to jump on it now before it gets chronic. Ice it, often. Rest it. And wear a wrist immobilizer for a few weeks.
I’ll be glad to provide any/all explanatory info you may want.
"What we obtain too cheap, we esteem too lightly: it is dearness only that gives every thing its value. Heaven knows how to put a proper price upon its goods; and it would be strange indeed if so celestial an article as freedom should not be highly rated." Thomas Paine
