I was diagnosed as dyslexic at age 8, thanks to a very caring teacher. Before she helped me I was thought of as lazy and at times stupid. I understand you not wanting your child to be labelled, but there are worse things. Dyslexia is not a medicated disorder, like some others. In truth your son will only benefit from being tested. I was given extra time for tests and went to a learning difficulty class twice a week, where we played memory and word games most of the time. I am lucky in the fact that my family was able to afford any help that I might need, but what it really took was time with family and a little extra attention. I played a lot of word games with my mother, to help focus my memory and she always checked my work. I also had to train myself to read a book the right way up since I found it easier to read the book upside down. I had problems differentiating from B and D, but a little trick that I was taught was to think of a ‘bed’, where a man can sleep and not a ‘deb’, where he will not be able to rest.
I have had to fight very hard in my studies, but have come out with flying colours. My cousin an Oxford university graduate, had a more sever case of dyslexia then I. But thanks to different government programs was also given help, from time in class to tutoring to new computer programs that help re-arrange written thought. Very useful when it came to writing essays.
I do hope that you will consider having your child checked. He can only benefit from it really. And if he is diagnosed as negative, it just means a little more focus on his studies is needed. I use to teach primary school and I found that the older the child got the less interested in studies they got, socialising became more important. We just need to get our children to focus a little, and reach a workable balance. Good luck
As a former Special Ed. teacher, I would advise you to have him tested. A "label" may get him the help he needs without you all having to pay so much for tutors. If he really does have a learning disability, he can get accomodations in his mainstream classes to assist him in the area of success. Just because a child (or adult) has an LD doesn't mean they can't be successful. He can even learn some methods to help him with whatever he needs. Good Luck.