Make Your Workstation Fit You
I notice my wrist and shoulder starting to ache after the preparation of my talks in the last retreat. I am worried because I typed over 25,000 words that 2 weeks and it might be early signs of carpal tunnel syndrome. So after the retreat, I got freak-out and went to get all those keyboard and mouse pads and replaced the mouse with a trackball device instead.
I just read that ergonomic product company Ergotron offers an installation tool to figure out what your optimum ergonomic workstation should look like. Just click your height and various values are displayed; sitting eye height, standing elbow height, seat height, etc. It might explain why you have such bad backache all these years.
Click on the picture to give it a try.