L.R.
I have an 8 year old that has SPD. He has been through SI therapy and is currently doing the Listening Program. I also have SPD although I never had therapy. My son and I have some of the same issues and it amazes me the things he will do after having SI therapy that I would never in a million years consider doing; therapy has made a huge difference for him.
I am also an Occupational Therapist. I work in a school setting and have many kids at school that have SPD. Because of my background as an OT I realized my son had SPD when he was very little and worked hard to get him the help I knew he needed. It took about a year to get him SI therapy.