I've mentioned before how one of my current chemotherapy medications gives me peripheral neuropathy, where my fingers and toes are numb and tingly. Most of the time that's not too big an issue—it's annoying, not painful, and I can still do most things I like to do. Typing is fine (though I may be a tad slower than I used to be), the buttons and dials on my cameras are still easy to operate, and even playing guitar is okay, since I was no shredding speed demon on the fretboard to start with.
However, tasks requiring really fine motor control are difficult. For instance, the other day my daughter Marina asked me to help her put on a necklace, with one of those super-tiny lobster-claw fasteners in the back. While I could get my thumbnail under the catch, I didn't have the precise feeling in my fingertips to get the tension just right, to keep the clasp open yet not have my finger slip right off. I had to ask my wife Air to help instead.
Similarly, peeling labels off their wax-paper backing and even opening the pop-tops on soda cans are now clumsy manoeuvres for me. When opening a Diet Dr. Pepper, I now usually resort to prying the pop-top up with a butter knife or a car key, then using my fingers once there's some good leverage to open it the rest of the way.
I'm not sure how much worse it's going to get, or what else that was once easy might become harder. Some people have suggested treatments such as acupuncture which might reduce the numbness. I might try that if the neuropathy becomes at all debilitating. It's the end for any aspirations of my being a neurosurgeon, anyway. Good thing I never had those to start with.