I got the BP block to the lower trunk yesterday. Today I am still in pain after being completely numb until this morning. However, I felt 10-20% relief in my arm and hand. My anesthesiologist wants me to wait until tomorrow to see how I feel after the pain from the injection site wears off (I am having a lot of pain in my collar bone, side of my neck and shoulder). Clearly there is more than just something in my BP going on, so I have to figure out the next step. But I think it's good that you are trying to rule out your disc first and holding off on the BP block for now since your shoulder pain is worse. When you did the scalene block, where did you feel relief? I am so confused about what could be the source of my shoulder and neck pain since I don't have any disc issues.