Prior to my diagnosis and a few times since, I had episodes of "word salad". I would speak and the English language was not what came out of my mouth! I was conscious of it but literally could not produce the words I wanted to say! One time it was to my doctor's office, hope they did not think I had completely lost my mind, another was to a good friend whose father also had PD.
I knew in my mind that it was just jibberish coming from my mouth, but could not form any words!
I don't think I have had that happen. I do feel like I'm beginning to studder and unable to pronounce words I've said thousands of times.
When I was on my previous meds my husband would be talking to me and it took everything in me to be able to answer him, very slowly.
Yes!! Before I was diagnosed, I went through a period when I had difficulty in forming words. My tongue kept doing its own thing which was not a good idea since I was a local Councillor and used my voice in public speaking.
I had to apologise for my incoherence and really force myself to think carefully about what I was saying.
It has eased off, I am happy to say, to the extent that I had forgotten about it until reading your query.
Yes. I had this in the last year of teaching and have it now in meetings.
Another present from parky.
Susie, I could not have described it better. This is exactly what has happened to me! At our Christmas family get together this year, I had to read aloud and was fearful that my tongue would trip up. Thankfully, I got through it! The increase in Sinemet has helped me; but I have found that when I am particularly fatigued, the "word salad" returns. 
Thanks Cheri, glad I am not alone in that one!
You surely are not alone. I never heard of "word salad" but I sure have experienced it more than once. Sometimes my brain know what to say but can't get it out; sometimes the brain does not know how to get it out. Wish a cure would come for parkinson's and all sickness.... one day it wiii. Dennis
Hey Dennis,
The term "word salad" is used more in the psychiatric field but does also apply to what I have experienced with my PD. I don't think people with psychiatric illnesses are aware that they are speaking jibberish. I have been aware of what was coming out in my mouth and it was not what my brain was telling it to say...
Fdyhnbvc vewahjjmkiol,m bbvgfff cxdsweujnnbhhhhnnbbggff!!!!!
OM u flibbygibbet!
No, lkgafdiugy podfgz ylduialadjldajk . hahalkhlf h'ajk 'ilhahaha
I thought therre would be food for me in this question! Fooded again...
I'm glad we can find humor in all of this!
Perhaps a TOSSED word salad?
I find myself doing more of what Dican described, stuttering and unwittingly mispronouncing.
Steve (Bisbee, AZ)
Well, it's in its early stages for me, but I have "go to" words...like "refrigerator" that pop out in place of other words at random times/
DBS levadopa challenge. Glad its over, but it does raise a question. 
Supplement recommendations
A potential case of remission of Parkinson’s disease
I can't find the right words 
PD Vibro Glove - surprising outcome - must share !! 
