You don't have normal dyslexia, thats a common mestake, you actualy have dyslexic dysgraphia, its actualy alot different.
It is the difficulty in writing fast, words will come out wrong and be illegible most of the time. Even if the words are formed correcly in your mind they will still come out wrong, people with dyslexic dysgraphia can ususaly spell perfectly fine if they write slowly.
It isn't always as sever though.
The most sever will have the person writing things completely as jibberish or even backwards, where as a mild case of it will just have the person using the wrong letters or writing them in the wrong order.
I have a very mild case of it myself, I only mess up on certian words/letter combinations. I ususaly pick up on it even before I'm finnished typing the word.
as a note, I made about 20 mestakes writing this.