MtownCyclone -
20 years out from neck dissection. The stiffness doesn't go away, you mostly just learn how to deal with it. I stretch everyday to loosen up the muscles. PT and acupuncture help somewhat also.
After completing my treatments in 97, my ENT said then that when cancer occurs in younger patients, (I was 31), oncologists were seeing a recurrence cycle between 15 and 20 years. He stressed to me the importance of monitoring my head and neck areas for any changes. [My recurrence was diagnosed17 years later.]
Just my history.......
You are your best advocate. You know what is right and when something is wrong. When its wrong, don't delay in getting yourself in front of the right ENT.
Good Luck and I hope that your current worries are just nerves and not something more troubling