Hi Greg,
Thanks for the video post – while I was watching that I followed along and found the exercise of deliberately closing the throat to compare that with an open feeling very helpful. I have been approaching the situation focusing only on what the desired behaviour should be and trying to ignore the negative habits – but having experienced how bad closing up feels I now better understand what I want to feel with an open and relaxed body and how good that feels compared to the bad feeling. This was very very helpful.