To give a brief background, approx 4 years ago I had twitching muscles that prompted a visit to a neurologist and he put me through the gauntlet of tests (NCS & EMG), all of which came back clean except for carpal tunnel detected in both wrists. My fear then was ALS which I managed to keep at bay until now. I have noticed for some time that if and when I bend my middle finger on either hand (by itself while keeping the other finger somewhat straight) the middle finger moves back and forth uncontrollably (shakes). When I bend all my fingers together there is no unwarranted movement. Could this be related to the carpal tunnel, could this be something more serious like ALS or some other neurological disorder or is this just a benign movement based on how I position my fingers?
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