The over-stimulation anxiety of PCS is understood. Being focused on symptoms can be self-defeating. Gently moving forward through your current symptoms by learning relaxation and other stress reducing skills will be helpful.

Except for rare traumatic situations, you can only make symptoms worse. You can not make the injury worse. Only you can track your triggers that make symptoms worse.

Rather than worry about your current state, try to accept it as a normal part of the healing process. Be patient with this process. Try to minimize triggers. Take care of your neck with icing and good posture, especially when resting or sleeping.

Have you been able to reduce your head aches by relaxing and resting ?

For me, resting means eyes closed. This reduces the visual processing load.