.... for taking time to answer me. I am better again after a visit to my PT. It appears that everytime I do something my neck cant tolerate (jumping, running eg), then my neck muscles will tense up - but my PT can help with Myofascial release.

I think I have a weakness in my neck or it can be CNS related. Probably it creates inflammation which takes time to subseed. I will write my thoughts another day but thanks:-)