I felt so fragile at the cranio-cervical junction for many years after my accident, I just DAREN’T let anyone near me to manipulate anything but I have, throughout the whole of my life, tried to keep my posture nice and upright. It was just so difficult, to get my head properly ‘up’ after my accident.
Well, to start off, nothing surprises me about this whole condition, as much of it doesn’t fit within well-known medical boundaries.
This sinus thing is interesting, whereabouts exactly do you push, a rough drawing might be useful ? I don’t suffer with sinus issues so I’m ignorant of these things but it might hold a clue if you show exactly where you press. Do you shift your head position in relation to your neck when you carry out this exercise ?
I believe the shallow breathing, indeed the general dulled response to breathe, is due to subtle brainstem compression.