Am not an "expert" on statins, but might be a victim of simvastatin (Zocor) , if in fact it can cause SFN, after being on mostly it (brief stint with Lipitor/Zetia) for 12 years. My rheumatologist told me to get off and stay off in February after the onset of
NL-DSFSN.

I wouldn't go near any statin again with a 10 foot pole. I'm now on Niaspan and really trying to stay away sugars and certain carbs. Have not eaten meats, animals fat, bad oils, etc. for years.