Lonnie-
I know this has to be horrifically disappointing to have had such a go at it only to experience failure. It is true that not every therapy will be successful for every patient. We all know this to be true. I do not understand why you do not experience the tingling sensation in the feet, because although I am numb below the knees, inexplicably the tingling/chilling sensation of the nerve therapy goes all of the way down my legs to my feet. So, I am both numb and experiencing the stim. Go figure.
It would have just been so much the better had you experienced benefit and I give you my most sincere regrets that it did not go the same for you as it has for me.
Prayin for you, man,
Mark56