I would for sure discounte the use of this TENS unit... I have one that works very well for me, it controls my muscel spasms... However this is one my phyiscal thearpist ordered for me... I think that you should seek a new PT (seems you are very unhappy with this one) and consult with them about the use of a TENS unit and have them order you one... Sorry you are going through so much pain!! Everyone is differnet but it diffenatly has helped me..

I hope you get on to better days soon!!!