@abcdw
@abcdw
For me center body alignment is critical; so when using a mouse I place it in the middle of my split keyboard.
I think only technical solutions will not solve your problem.
Many usage philosophies don't want the hands off the keyboard and instead keep the hands in a fixated position as much as possible. This is no natural behaviour for the body, which is build to move. Try to at least find a middle ground regarding these philosophies.
Feel your body and differentiate between micro movements (i.e. mouse), typing and bigger macro movement involving other work when stress gets to a certain level.
Make a habit of stretching and do weight and or resistance training regularly. Last tip: the book Desk Bound by Kelly Starrett.
https://thereadystate.com/product/deskbound-standing-up-to-a-sitting-world/
I hope you can redice your pain. Good luck!