Welcome kenvng! I'm so sorry to hear about your troubles.
Well, one of the few rules on this forum is to avoid giving specific technical advice. You can read a whole lot more about this on
Advice: an update. So I don't think you'll get a lot of advice here. But nothing is stopping anyone who had problems with their pinky to say what helped them!
And it is completely legit for me to tell you that I think you
need specific technical advice. If you are healthy and in good shape, the way you are moving is what is causing trouble for your pinky. Which is great news, because it means that if you can learn to move differently, your situation can change. I had a terrible problem with my pinky that I was able to get help with through a combination of yoga and the Taubman approach to piano technique. As I was able to feel my arm and hand go down into each key with a more free pinky, I felt better, and the quality of my playing improved as well!
One thing that never worked for me was exercises. I did a lot of exercises when my fingers had troubles, and it just made them worse. Finally, I realized that my fingers were suffering because they were too isolated in the first place, and what I needed was to play in a more coordinated and integrated way with the rest of my hand and arm.
A teacher of the
Taubman approach to piano technique could help you play in a more integrated way. If you would like to
contact The Balanced Pianist and let us know where you live, we will try to recommend a good teacher who lives near you.
I would also like to invite you to attend
The Balanced Pianist Pennsylvania, coming up on Columbus Day weekend.
Good luck to you!