Exactly. I have the similar symptoms. The fear of stumbling upon my words and others judgements worsen my speaking. As well as talking about serious issues. Also recently when I'm arguing with someone my fear of stuttering and my anxiety increase to a point that my hands would start to shake. And I have no idea where it comes from. I'm tired of this shit man. The people around me understand this but hopefully they don't bring it up to me. I also noticed some of them talking and giggling about it behind my back which I hate it. Stuttering is more of a psychological difficulty than a speech disorder for me. Combined with diffidence and anxiety it's brought my life to a low point.