if it does turn out to be CMT it will progress. You will be quite aware of it. You would then find that you just cannot do what you used to do including hiking, walking very far, etc. It does happen. As Susanne posts that she has lost ground in the last year. I have in the last few years. Symptoms of CMT did not rear their ugly head until much later in my life. It could be of great help if you did find out whether you have CMT or not. Again, no one, not even a doctor, can predict how you will end up if indeed you do find out that you have CMT.
Todd MacCullough who played for the Philadephia 76ers a number of years ago ended up having to quit his career when he found out his trouble was Charcot-Marie-Tooth disease. Here is a site about it:
http://sportsillustrated.cnn.com/bas...ulloch_out_ap/
Julie Newmar is another one. She played Catwoman in the 1960's Batman series.