Kidlove,

I have worked with families who have children with Autism. And my oldest has ADHD and a few learning disabilities. I have had friends and family member tell me now that they always knew my son was different...man I sure wished they had stood up to say something years earlier. Some of the families have said they had wished someone had stood up and said something to them too. Its hard and yes it probably will affect your relationship with your sister, but if it is for the benefit of her child she will understand...eventua lly. The younger the child is diagnosed the sooner they can start in a program to help them.

Try, Autism Treatment Services of Canada, their website explains Autism and has links to several agencies and research centers. They also have recommended readings on the site.

I hope this helps.