SPD advice

So as I have said on here a few times my little girl (2) is awaiting testing for Autism...She started Speech Therapy a few days ago...The therapist said from what she could see and what I have told her that my LO possibly has a sensory processing disorder..She is referring her for testing for this also for multiple behavioral testing ie see a psychologist...I'm just wondering if anyone has a child with SPD and if so could they give me a little insight from a personal experience