Hi I am 7 years post surgery, radiation and chemo and continue to get neck and shoulder pain and on occasions severe cramping. I have tried all sorts of remedies from medications to acupuncture. I have come to the conclusion that regular stretching , PT and massage although short lived is the only real relief from these conditions. If you have the accessory nerve severed you will have atrophy of the tranpezius muscle and this will also lead to some discomfort and needs to be worked on through PT and the gym if possible. It seems that everybody is different and different things work for different people depending on their exact procedures