I am so, so hoping that ADD is the cause of this. I want to be able to fix the problem with meds. I read somewhere online that certain kinds of ADD can cause a slowness when speaking. I think it has to do with the limbic part of the brain or something. I also have social anxiety, so it might be another symptom of that.
I'm sure I have inattentive ADD, but haven't been diagnosed yet. I go in for an evaluation next week. I will definitely mention this.
It's so embarrasing. I can speak fine when I'm calm and relaxed, but when I'm stressed or anxious I'll garble and slur and blank out. Once, while working in customer service, I stuttered something so bad that I couldn't even finish it. I went to the back and cried! And I don't generally stutter.
I'm not sure if this is the same problem as the original poster's, but I bet it's related.
PS. 2speek2...I haven't done drugs, I've had this problem pretty much all my life...and you're not retarded!