Let's review. Why do we want to strengthen? Why are we exercising certain muscles, we want to re educate our postural muscles so that our back can hold our spine in an erect upright position, and so that the muscles of the neck are evenly balanced and cooperating with each other so that they can maintain and support the weight of the head on top of the spine. As the muscle fibers regains strength and flexibility, fatigue and muscle spasm will stop your activity is to go back and practice all of the exercises. Do them consciously do them mindfully and slowly breathe and pay attention to your body's messages.