My son just had surgery to release the compression at the elbow, his was caused by a car accident and caused the numbness in the last two fingers that you described. The surgery was successful.
I have the same symptom, as well as numbness and weakness in my hands and fingers and an inability to straighten my arm in the morning, but mine is related to the hereditary neuropathy and is not treatable by surgery. I was tested for HNPP, but it was negative, so you can have nerve compressions with CMT, not just HNPP. My EMG at Johns Hopkins showed pinched nerves at wrists, elbows, and the neuro was pretty certain there would be others, which is why he tested for HNPP.
It can be a very complicated process to find a diagnosis, and many seemingly unrelated symptoms can be part of the same disease, then again perhaps your nerve compressions could be treated by surgery and your toes are related to a circulatory problem. There is a test they can do to find out ow the blood flow is to your feet, it involves tiny blood pressure cuffs for each toe.
Age and activity level are not a guarantee against circulatory problems. Does hair grow on your toes? I remember being shocked when my podiatrist remarked on this, but it does give some indication of the state of your circulation.
I hope that you get some answers soon.