I had major problems with by back and neck after my first neck dissection because no one told me anything other than don't lift anything over 1 lb.

First, do you have arms on your office/computer chair. If not get one with arms. Without that, I wound up sitting in crazy positions trying to support my arm and pulled my back and neck completely out of whack.

Second, get to a physical therapist to strengthen your arm, get your shoulder blade back in position and also to help get rid of that lymph fluid under the chin. Trust me it all feels wonderful.

Third, if your back and shoulder are bothering you, I would support the arm as much as possible so it doesn't drag on the shoulder. I used a stuffed bear under mine when riding in the car, watching TV, etc. Anyplace where I didn't have a chair arm to support it. If the arm feels heavy when you walk, support it under the elbow with the other hand.

PT should be able to put you back together. They did me. When I had the second neck dissection 4 years later, I followed the above procedures and went to PT immediately and had no problems.

Hope that helps,

Eileen