can you find out what percentiles your nerve fiber density falls in? You may not have enough damage yet to fall withint the percentiles considered to be proof of SFN but you may be close. A report just saying its normal is not much use in trying to figure out what is going on if you have symptoms.

also as far as the ankle being a control sample and having similiaraxonal swelling as the other two sites, are your feet or ankles exhibiting symptoms also?