I propose a series of easy exercices to practise and that will allow you to untie accumulated tensions in certain parts of your body. The advantage of practising these movements is to bring flexibility and life to the whole body.
Some of these movements are practised lying on your back on the floor. If this causes a discomfort in the back of the head and there is pulling in the nape area, the position will be eased by placing a small cushion under your head. However, for the next test, I suggest doing without the cushion.