[Noah930]

Cybernetic arms are pretty expensive, even when on sale.

Always hard to give an internet diagnosis, but you may have carpal tunnel syndrome. If the doc you're seeing agrees, try wearing a semi-firm wrist splint (like the ones supermarket checkers wear) at night when you sleep. It's not necessary to wear it super-tight. You just don't want to be sleeping with your wrist bent all night long. It's to keep the wrist straight and prevent the nerve from being kinked off for hours on end.

Oral anti-inflammatories (Naprosyn, Advil, Aleve, Ibuprofen, etc) may help.

Stretching exercises for the wrists.