I only say you don't have a stuttering problem because once you view it as something "wrong" or something needing to be "fixed" or mind has already added negative connotations to stuttering (alot of it being unconscious). I mean no harm in saying you don't have a stuttering problem I thought I had one too and it honestly made me feel like shit for years. I understand that you may stutter in almost every situation but there are times (I'm sure?) when you have a brief moment of fluency right? You said it yourself that when you smoked weed you didn't stutter? That's because your mind and all the processes that happen behind the scenes aren't presently focused on the stutter. Think about it? Think about when you're about to make a phone call for an example, what do you usually think about? How stressful it is? Maybe the fact that you're going to block again because you've blocked in the past? Once we allow these thoughts to run they sort of have a mind of its own. These thoughts and words you use (again a lot of its unconscious) are extremely powerful and oftentimes they come along with this intense state of panic and/or anxiety. As you're thinking back to a time when you're about to block or think forward to a time you know you're going to block what happens? Whatever is going on in your head has been taught to present itself physically. You may feel pressure in your chest, stomach, lungs etc. You may feel so consumed by this intense anxiety that when it grabs hold of you it doesn't let go right? Your mind can't go anywhere else no matter how hard you try right? So when you think about a time you blocked or when you're going to block doesn't that very state of anxiety flare up? (Even though you may be alone right now). What qualities are the movie in your head when you envision yourself blocking? Is it black and white? Is it cold? What are you focused on? Are you associated? The body doesn't know that the situation isn't real (again you're only thinking here) but as soon as your mind has the image or words or feelings etc the body almost goes along with it. To make it simpler to understand I want you to think about grabbing a lemon and cutting it in halves. This lemon is really juicy and you pick up the one half and squeeze it into your mouth. How does your body react? Does your tongue start to salivate? Can you almost taste the sourness? Feels real doesn't it? The body doesn't know what's real and what's not, it only goes along with what the mind tells it to do. This is just the tip of the iceberg when it comes to understanding stuttering, how it happens, how it manifests itself etc.