I know, because I've been doing it too!    
At first glance this borders on  being a little rude, but most of us have been giving the keyboard, mouse, the tracker or remotes a fair working over.
I woke up one morning with intense pain in my index finger.    Overusing the mouse (everyone else has moved on I know, but I still have a mouse....) had tightened my forearm flexors, I could feel them bulging through my arm.   A strong massage with laser, some consistent stretching, solved the problem.    
Whatever you do, don't get behind on these niggly pains, they are warning signs that something isn't right.
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