Yes I do. That is a block. I like to think of blocks like a brick wall and I am trying to pass through. Break the bricks by brute force. The irony is that everytime I do that the wall get thicker. Bigger. So I get more stuck and start the facial contortion and the muscle tension of my jaw and throat. My new strategie is to just wait it out. Observe the wall. Understand in my heart that is not real. When I am patience enough and genuinely don´t try to pass through or avoid, the wall dissapear and I can talk just fine. ¡Don´t try to force it! It is imposible because it does not exist. Only in your mind.