The last two leg workouts that I have done that involved putting the barbell on my shoulders are FitPrime-Weights First and Leaner Legs. Both times, my neck is killing me within 24 hours (particularly the right side of my neck) and I have NEVER had this problem before. What could I be doing differently that I am not aware of that is causing this problem all of a sudden? I don't use a bar pad with these two workouts and it has never been a problem.