Carpal Tunnel

A word of warning to you reading: go check out a good page on computer/desk ergonomics before you end up like me.
After years of working at a desk mostly made by me (ie, a plank of wood atop two advantageously-placed file cabinets), my shoulder has revolted. I’ve got pain in the whole right side of my back which is acute in my shoulder, just under my shoulder, and in my neck, pain that runs all the way down my arm and into my wrist and hand.
Bad timing considering I’m now two months away from my book deadline.
Alas, a couple of days ago I discovered thanks to the above diagram that my hands were too high. I bought one of those under-desk keyboard drawers, which came with a wrist rest, and so far, so good. I also aligned my monitor so it’s right in front of me – it was off to the right – and remember to sit as far back in my chair as I can. I think what got me was leaning forward, to the right, into my mouse. I’m just hoping that slowly it will go away, and I’ve immersed myself in a world of hot baths, massages, acupuncture and pain killers.
At least I’m not a hatter.