stuttering and having trouble talking could sometimes be that my brain is doing intense processing

if I start to stutter when I talk, or have trouble talking at all, 

or have long pauses when I talk, 

that might mean that my brain is doing some intense processing and my consciousness has trouble thinking and talking, 

but it might also be that I'm just acting, 

or it might mean that I'm doing experiments and upgrades on my brain and speaking apparatus to develop some cure for different types of speaking disorders, among other things, 

not unlikely, it's a combination of above mentioned things, 

depending on situation