I will share with you what my first thought was when I read your post ... it reminded me of the proceedure you are to follow if you are alone and think you are having heart trouble, you are to cough as hard as you can which creates a compression using your own diaphragm. The bodies own wisdom? Won't say for sure but this was my imediate response to your post.
My second thought came later as I was trying to decide to post my first response. I was wondering if you had tried to change the position of the tongue against the roof of the mouth? I had a "bottle neck" of energy in my shoulders and neck resulting in a terrible headache. It wasn't until I noticed the pressure over my right eye and down the right side of my nose that I made the energy connection. But placing my tongue on the roof behind the teeth had no effect. It then occured to me to move the tongue to a different place on the roof of the mouth and when I did this it was like a 'mud slide' from the top of my head all along the front channels to the lower dantien.
Listen to your body, it will talk to you.
