My DD has been diagnosed with dyslexia. I didn't even notice any signs of it.
She is at university and one of the tutors noticed her handwriting and spelling and asked if she was dyslexic and she said 'not as far as I know'. She was sent for a basic test and then a proper assessment where she was given a formal diagnosis.
I feel enormous guilt. She has gone through her GCSE's and A levels with me nagging her to concentrate, improve her writing and just generally ignoring the 'I can't read this and take it in' comments. She said that to be fair she was a bit of a prize moaner and it's not fair to blame me for not noticing.
I just feel so bad. She now gets extra help at uni with more time with the tutor and more time to do assessments but really, she could have done with this help in school too.