Not sure if it was you who I told this before: I realized that for me, the reason I blocked was because I was resisting actual stuttering. So for example, if I wanted to say "Smartphone" and knew I couldn't say it, I would block, because I didn't want to go "s-s-s-s-s-s-s-s-m-sm-sm-sm-s-martphone". The blocks, for me, occured as a sort of panic response - me not wanting to stutter as mentioned above. I (m32) remember 6 months ago, I told my wife I wasn't going to hold back on my stutter anymore, and that I'm going to let my authentic stutter happen without me forcing anything. Lo and behond, no more blocks and the side effect of feeling chocked and a sore throat and all that. I can't remember the last time I blocked like I used to. With my wife, I'm very close to fluency, because she's the perfect person to be around when working these things out. When you allow yourself to stutter freely, without holding back, your blocks will most likely disappear.