Stiff Neck More Condition_treatment How Can I Relax My Stressed And Stiff Neck?

How can I relax my stressed and stiff neck? - stiff neck more condition_treatment

I have this problem for more than a neck year.My feeling stressed out and stiff as a result of stress.I there is nothing else behind it, like all the blood tests, x-rays, etc. normal.So "How can I round my neck ? break