Puzzling & Reprogramming

I recently got addicted to on-line puzzles thanks to talented creators like our friends at Eastside Cats and 15 and Meowing. Yesterday I even submitted a few like the one below. The only problem is that manipulating the mouse with my right thumb tensed nonstop resulted in minor pain.
120One of Nature's Cutest Killers
So I’ve loosened my hold which, of course, seems to have triggered discomfort around my shoulder blade. * ~sigh~ I’ll find the right balance between technique and limiting my time on Jigsawplanet. Meanwhile, I’ve started using my left thumb to hit the space bar. Reprogramming how I type takes effort.

Isn’t it annoying when favoring one body part causes issues elsewhere? Can you believe that my hobbling around on a mildly sprained ankle resulted in injuring the other?

* Update and duh moment: The back/neck discomfort is not from changing my grip. ~shakes head~ It is due to the fact I am using the mouse for unprecedent periods.

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