The file you attached explains what the physiotherapist found at objective assessment. Your cervical active range of motion for rotation to the left and to the right, and for side bending to the left and to the right is limited to 50% of the normal, and muscles are tight.
For your thoracic spine the rotation left and right, the active range of movement is limited to 3/4 of normal. Tight muscles as well
C3-C6 for example is the area of cervical vertebra and T2- T4 is for the thoracal area. He found restriction at this level.
So you need to work on your range of movement for neck and upper back and decrease your muscle tightness through stretching, soft tissue release, heat therapy, exercises, etc.