Wasnae me, our experience for what it's worth might be helpful. Your story might be describing our DS at 6. He is a very bright, very creative and intelligent boy, but at this stage (he is now 8.5) we really had problems getting him to read anything.
He was always "slow" on the reading front. Loved his numbers and always excelled, but always a bit slower on the reading front.
Fortunately, we have very supportive (and it has to be said, very experienced) teachers who took the time to talk us through "reading strategies" that the kids adopt and pointing out to us ( quite forcefully ) that indeed, every kid is different and learns differently and that although we weren't happy with his approach, which was to memorise everything - hence he wasn't really reading things, in our view - that he was making sufficient progress and that if we could chill out a little bit and relax, he would easily get there.
We trusted them and over the last 2.5 years he has made fantastic progress, most of it coming in the last 12 months.
The start was finding something he liked to read and with our DS it was Captain Underpants - which to me was an anathema, because it wouldn't survive a minute's scrutiny of the eagle eyes of the Mumsnet "Proper English" brigade (of which I am a paid up member)... it is riddled with incorrect spelling, terrible grammar (if any..) but P1/P2/P3 kids love the stories.
We were helped by the fact that our Depute Head has a boy the same age and was able to assure us that her DS' situation was the same. (Not ALL boys are later to take up reading btw, but many are..)
DS progressed from Capt Underpants (but still loves getting the new ones as soon as they come out) to reading football magazines, comics, Dr Who comics (which his Gran, a retired Primary Head bought him to encourage his reading, but likewise cautioned "chilling out" ).
Now, he has his own "Waterstone's Card" and loves nothing more than going in to buy a book whenever we pass. He's now in the top reading group - but has to work hard - however we have now recognised the importance of finding his interests and directing him towards these - Football magazines, the Sports section of Weekend Broadsheets, Astronomy books, websites...
We work closely with his teachers who are very receptive to our ideas and who genuinely encourage us to bring in work that he does at home to ensure that they are up to speed with progress that they might not be seeing in a group situation. (He loves writing stories...)
I guess what I am saying is, sure your DS might be dyslexic, but he might just be as your teacher feels "a normal, ok boy".
The trick we found was to thole the pulling teeth, the huffs, the tantrums (your name suggests you will know what thole means), to get through the reading books and flashcards and find the things that "floats his boat" - whatever - whatever they are and encourage him to read them and watch him to see how he goes.