If I had a desk job, and I typed my whole life using the same finger placement and such, then I got carpal tunnel(sorry if misspelled). After I returned to my job, my boss doesn't say anything to me about changing my hand placement to prevent this. So, apparently, it's entirely up to me to change the way I've done this task(that is my livelihood) my entire life. That would be very difficult, maybe even unreasonable. I don't know what's causing it, making it very difficult to diagnose what to change as well.