Okay, here's what might help:
1. Avoid crises.
2. Agree that change is a part of living.
3. Move toward your goals.
4. Keep everything postive.
The doctor. most likely, is referring to the settling process. In this process, the muscles are still adjusting or on the process of healing so he is experiencing some back pains due to this. Once the muscles are settled in place, he would feel normal again.
Clerical work is usually one of the top ones due to the constant repetitive use of the hands with typing.