Yep I get yeah, I have arthritis that affects my hands and a few fingers and also dupuytrens on my left hand, this has caused loss of feeling in my two small fingers on my left hand.
Both my hands and wrists are almost shot and after a few bursts of firing, my trigger finger goes dead and I cannot feel the button anymore. Missed a few opportunities because of this. I now pass the camera strap over my back, like a bandolier, so that if I lose my grip, it cannot fall far or jolt my neck. But, hey, we must suffer nobly* for our art!
*PS : and, in my case, not quietly...