I would second @caedmyn’s suggestion to research the symptoms of dyslexia.
I sure wish I’d started earlier on the remediation trail. I was waiting it out, hoping something would click and that my daughter was just a late bloomer. But looking back I was noticing signs of dyslexia even as early as 18 months old- when she could quickly sort the 18 shape sorter with no problems, astonishing everyone with her spatial awareness skills; then again when she was three and four and not able to remember basic color names.
She’s 11 now and we are using a Orton-Gillingham based program and she’s finally seeing some success which is so rewarding for her. I wish though that I’d found this method earlier than 10 years old as it feels like we lost some valuable time that I could have been helping her and she would have been able to glean even more out of our CM method homeschool.
Dyslexia Quest by Nessy is a fun game that can help a parent see where possible learning differences are. I also suggest watching Susan Barton’s video on Vimeo- “Signs and Symptoms of Dyslexia.” It was eye-opening for me.