I was reading this post and it was like I was looking in the mirror. I too don’t audibly stutter. I have abrupt speech blocks that cause me to desperately find word substitutions on the fly. Sometimes it works out, sometimes I have to completely rephrase what I am trying to say ( which makes me sound unsure of what I am talking about) and sometimes I have such a huge block that I can even make a sound. The problem with substitutions is that there aren’t any for things like your name and phone number. Those get me every time. How embarrassing it is every time I am introduced to someone or I am asked for my phone number. I can’t say my own name for f*cks sake. I often have to use my wife’s contact information as the start of her phone number is easier for me to say. People get the impression that I am rude or don’t care to respond to the handshake or introduction and it is miserable. Often times, people think I forget their names when I really don’t. Work is a complete nightmare. I sit at conference tables, Zoom meetings, webexes, etc and I almost never get to provide anything useful to the conversation. I can be sitting there with every answer to every question being asked and I can’t get more than 2-3 words out at a time. I tried speech therapy for years and nothing helped. I thought maybe anxiety or depression could be a cause, but I have tried multiple SSRIs and other medications with absolutely zero impact. Alcohol, CBD, THC, nothing works so far. Not even a 1% improvement. I simply cannot move forward with my career or my social life because of this disability. Living with that over my head is where I get my money’s worth from the anti-depressants. Shit, I couldn’t even eat what I wanted to today for lunch because when it came time for me to order at the counter, I couldn’t say what I needed to. I don’t have a solution for you. All I can say is that you are not alone. Take that for what it is worth.