If you don't mind me asking, what is your kidney disease? I ask because I have been researching my carpel tunnel as a symptom of my own problems and I read about a disease called amyloidosis, which is related to kidney disease and is associated with carpel tunnel. I'm not saying you have amyloidosis, but if that disease can be associated with carpel tunnel then maybe other kidney problems can be too, just a thought.
my kidney disease is called membranous nephropathy--I never had the numbness until I started the meds for this disease-it was not so bad at first but now it is keeping me awake at night-I will read upon "amyloidosis"-I am not familiar with it
Carpal tunnel can be one possibility because edema associated with kidney disease can press on the median nerve.Pls elaborate on the medicines that you are taking.Although less likely but side effects of these medicines has to be reviewed.
Hope it helps.Take care and pls do keep me posted on how you are doing.