hi my name is robert i have had rsd for 6 months. i had 1 block and that was not good .it was like it woke the rsd up pain went from a 1-3 to a 4-7 i have a tens machine .i use it all the time .when i got the shot it hurt alot .couldn't breath for 2 hours . now i have to decied by next tues if i want a stimulater put in or another shot dont know what to do please help