Rose, hello and thank you for the question about CMT. That was one of my concerns very early on. My CPK is normal - since I had an MI >30yr ago my cardiologist is really attuned to this. Also, I don't have a high arch, quite the opposite, remarkably flat feet but I know you can have CMT w/ flat feet. Fortunately, I don't show any of the more classic symptoms of muscle wasting, champagne legs, foot drop, or exaggerated gait. Aslo, my phys therapist has worked w/ a number of CMT cases and she doesn't se eany evidence in my ankles. Nonetheless, your query has me wondering again. I'll look into this in more detail - thanks for asking.