Lisa,

I too have a very hard stiff neck, especially on the left side, I had a left ND. I do stretches several times through out the day. I have been going to physical therapy again, and that helps but is quite painful. My Drs say it's fibrosis and scarring of the SCM and tendons, brought on by the ND and RT. The physical/massage therapy makes it feel better temporarily, but it will be this way for the rest of my life. At home my wife rubs it with lotion and that helps a great deal too.

I know this doesn't help you much, mainly just confirms your Dad is normal.

Tim