Very Painful Legs and Sweating

Although I have never been diagnosed with diabetes, my glucose has gone quite high in the past but when I cut down on sugar it goes to normal.  Regardless, I have had episodes of what must be neuropathy in the past eight years or so.  They are not very frequent but terrible.  My feet and legs [hands, too, to some degree] ache severely.  This can be relieved with Ibuprofen for awhile but lasts for days and even weeks.  The attacks are accompanied by a kind of cold sweat all over the body and this part is worse than the pain for me.  My entire body feels cold and clammy to the touch, but my temperature is normal.  The first time I had this, I felt very cold most of the time and that feeling was not relieved until I began to perspire from putting on lots of clothing and covering up.  The leg pain was there then, too, especially at night. But now I don't feel especially cold.  I feel sick in a general way and have trouble sleeping due to the discomfort.  About a year ago I went to Urgent Care with this same problem.  Nothing was found despite blood tests.  Now I am experiencing the same symptoms for nearly three weeks.  Some days I feel almost normal and then the next day the whole thing flares up with a vengeance.  Today has been really awful, perhaps because I got less sleep than usual last night.  I am 70 years old. Has anyone who is not a diabetic had these symptoms?

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