[epc]

See a doctor, get a referral to an ergonomic specialist.

Immediate action: try wearing a wrist brace, at least on the right hand. This will make a lot of activities difficult to do. That is the point.

In 1993 I went on a multi–night bender writing a gopher server that could also speak HTTP, using a keyboard and computer that weren't mine which didn't have a wrist rest. At the end of the bender I had a working gopher server, but my wrist had swollen so badly I couldn't type anymore (while the bones of my hand ached badly, the surface skin was numb). It took six months of working with a wrist brace to undo the damage and to this day it resurfaces from time to time.