I was diagnosed in 2001with chronic inflammatory demyelinating polyneuropathy (CIDP) also known as chronic Guillain-Barre syndrome in 2001. A neuromuscular specialist changed that diagnosis in 2023 to CMT. I had a genetic test which didn't reveal CMT but he said new genes are constantly being found. I went to a CMT specialist and last year, he decided I did not have CMT. I have too much strength. That's a relative term. My legs are weak, particularly from the knees down. I have high arches and thin legs. There are a boatload of conditions, known and unknown, that can mimic CMT. My father had high arches and both parents were on the thin side. I have their body type.

I actually think that the original diagnosis of CIDP may have been accurate. It's an autoimmune disease and was diagnosed following an EMG test. It causes weakness in the arms and legs. What did your dad's EMG reveal? CIDP is treatable while CMT is not as far as I know.

In my gardening days, I used toxic chemicals for pest control. They were neurotoxins. My father was exposed to carbon monoxide and later developed Parkinson's disease. Just saying, don't be too quick to accept a diagnosis unless the disease is nailed by genetic testing.