There are a variety of different forms of Dyslexia, so I can't speak for everyone. However, this doesn't resemble my own personal form. I would be curious to hear from other Dyslexics to see if this is anything close to their experience.
The way I usually explain my variety is that my brain is trying to read faster than it can physically. I have no problem reading words (which seems to be what this code is focusing on), the problem is my brain is already moving forward and the word I read is often not the word written on the page. Sometime I can make the contextual correction in my head while other times I have to reread the sentence to make any sense of it. In that instance, I can understand the "jumping around" description as I can read a sentence for a second time and suddenly my brain will see a different word than it saw the first time.