If cluttering is where you stumble on words/start saying words ahead of their order then I do that but
Clutterers:
Are very unaware of their disorder I am very aware of it
Perform better when speaking under stress NOOOOOOO
Have a hard time fluently giving long answers yes
Have hasty, repetitious, uninhibited, messy handwriting well it is messy
Have little to no fear of their speech and are careless in speech I guess yes
Therapy focuses on calling attention to speech details
Are typically outgoing or extroverted[citation needed] NOOOOOOOOOO
Typically were never very fluent[citation needed] good understanding of, difficulty using
Do know exactly what they want to say, but it becomes disorganized while actually speaking yes
Have disorganized, tangential, grammatically incorrect speech with word substitutions no
Are impatient listeners, frequently interrupt, and have poor turn-taking skills in conversation somewhat, I often guess what someone is trying to say if they get stuck, have trouble interupting others though
so I guess no I do not "suffer" from cluttering. In fact its more that stress causes the difficulty in communication, the extreme of which is being unable to talk during a meltdown, so I would guess its more related to that. That and I try and talk too fast, try and get the thoughts out of my head too fast and stumble on words.