Dyslexia is a common type of learning difficulty that mainly affects the skills involved in the reading and spelling of words.
Dom wasn't diagnosed until he was 15.
He said: "Until I was 15, I just thought I was thick and I couldn't understand why 'cause I was trying so hard.
"Around then it wasn't recognised as much... you were just considered as not learning as quickly as everyone else, and not being as intelligent as everyone else."
What made things even more difficult was that his older brothers were grade A students.
"People at school used to call me thick and they used to say, 'Your brothers are clever but you're really thick!' and that used to really, really hurt."
However, Dom thinks it's not always a disadvantage being dyslexic.
"I was really creative as a kid... in some ways it's a really, really positive thing."
"If it wasn't for being dyslexic, I wouldn't be where I am today."
If you think you might have dyslexia, you should tell a parent, guardian or teacher.
There is lots of help available and with the right support dyslexia needn't stop you achieving the things you want to do in your life.
Does dyslexia affect you?
Do you have dyslexia? How does it affect you and your life?
Perhaps you know someone at school with dyslexia? What help is there for dyslexic kids?
This chat page is now closed, but you can read some of your comments below.
I get bullied because I can't spell and pronounce some words... even teachers get angry and annoyed! I have been to lots of different schools. But i write great stories and I have passed a lot of my drama tests. I am very creative and I have confidence in myself and so should everyone else. I would not change that I am dyslexic at all!
Elspeth, Oxford, England
I am dyslexic adult. When I was at school 25 years ago I found it really hard going. I was once taken to the front of the class and the form teacher announced that I had a reading age of 7 - I was 12 at the time! I was called lazy or thick despite being a hard worker. I never let it stop me. I found that I had a really good memory so did not need to write things down - I think this is the gift of dyslexia. Years later I'm a lawyer. Not bad.
Richard, London, England
I am dyslexic and so are my mum and dad. I have just started working with a special teacher at school and since seeing her I have been doing an exercise where I have to listen to words and sounds through headphones and type them out. This has been helping me and I'm getting better at reading. I read to my mum and dad every night which is hard work, but the more I do it the better I am getting.
Amelia, Beverley, England
I get my b and d mixed up and also the letter p with the number 9.
I am dyslexic and I find spelling the hardest thing. I'm probably the worst in my class at spelling. But I don't care as I am better at creative things and science (I'm the best in class at that!!) Mum says if I work hard there's no reason I won't achieve my dream of being a scientist.
Helena, Wiltshire, England
I am dyslexic - it affects me at some point in the school day, mostly during Maths when doing sums. It doesn't mean you're thick or stupid at all, it just means you're a bit slower at learning. But you can always be good a something, for example I play the drums and play with many types of bands.
Rory, West Lothian, Scotland
I have told some of my friends that I am dyslexic but when I ask my friends how to spell a word, they sometimes gasp and it makes me feel sad.
Emma, Buckinghamshire, England
I am dyslexic. I find my bad memory the hardest thing. I find it hard to remember what has just happened, what I'm supposed to be doing, or where I have put something. It makes me disorganised and muddled.
Tom, Chelmsford, England
My mum has dyslexia, and wasn't diagnosed until she was an adult. But she didn't let that stop her. She is now an airline pilot and flies around the world every week!
Alexa, Camberley, England
I find it really hard looking at a word, then covering it up and having to spell it. Sometimes I write letters the wrong way round or swap letters around inside a word.
Thomas, Wrexham, Wales
I think it is really important that everyone understands what dyslexia is so that it's easier for children with it to get the support they need.
Millie, Oxfordshire, England
I have dyslexia and it is hard to focus in school. When I was in Year 7 I was picked on, but now that I have help from my teacher and my friends I'm doing much better.
Masum, London, England
I have dyslexia and it makes things a lot harder. I have a support teacher and a laptop to use in school. The laptop reads back what I have written.
Erin, Aberdeenshire, Scotland
I have dyslexia. I have coloured glasses which help me a little to read and stop words from moving about the page. I don't think people and teachers understand how hard it is for me and other people with dyslexia to concentrate and keep up with school work.
Liam, Barrow-in-Furness, England
Two or three of my friends have dyslexia, but it doesn't affect our friendship. They just find it harder to read and write than I do.
Natasha, Cornwall, England
I was diagnosed with dyslexia when I was about eight because my writing was really wonky and I was a slow writer. Dyslexia has affected my life in many ways some positive and some negative. I have help with my reading and I have a grip on my pen and I use a laptop for some subjects.
Chelsey, Shrewsbury, England
I have dyslexia. I'm like the worst speller in my class. I don't like having dyslexia but I do, so I'll have to put up with it. My mum says I'm getting better at writing and reading.
Amily, Guildford, England
I'm dyslexic and I go to a dyslexic school. It has helped me with my reading and writing
Oscar, Windsor, England
Dyslexia has made my life hard. I got a tutor which made things a lot easier. But in my class there are others who haven't had any help which is upsetting. They've really struggled with no help.
Josh, Wetherby, England