(((hugs))) I, too, have been typing 40years. But, I do not have carpal tunnel syndrome (in spite of my neuropathies.)

I definitely suspect the encroachment of the computer keyboard/laptop/notebook and the angle of the screens, and the heighths of the tables and chairs... the technological scene came upon society so fast and by young people who didn't have typing science background.... anyway...

KEEP your WRISTS UP! SIT UP straight! Raise your monitor if you must... ah gee adjust all : chair, monitor and keyboard...
I have a notebook and my physical therapist has checked and double checked with me to make sure (especially when I'm using it in bed) that I don't succumb to poor usage.

Which, btw, is a good "thing" to try... a physical therapist.. or a chiropractor. I knew someone who had the tunnel problem and hadn't attended to it and so it was creeping into the elbow... and of course would also reach the shoulder if... anyway, the chiro made some quick wrist, elbow adjustments, a few verbal reprimands, and voila no more trouble for that person....

PS wrist splints do not correct the problem folks... they merely immobilize the wrists! If your posture is still poor, you will get other problems... even with the thumbs (and then you will need thumb spica splints...)

The solution is longer term for some than others I think... ATTENDING to the mechanics of what you are doing and not just what you are doing ON the computer... mj I think that's a great field to be studying.