Lynn we are dealing with the same thing. For my daughter, she needs the extra congnitive stimuli and the extra sensory stimuli so I think she actually has both. Have you read Lucy Miller's Book Sensational Kids, in the back she has a section that talks about SPD and ADHD together and it sounded very much like my child. I haven't done much with regards to ADHD because my daughter is only 5 and it is a lot harder to dx at a young age than SPD is because ADHD symptoms tend to be more behavioral and difficult to pick out from just immaturity whereas an OT can do specific tests regarding balance, proprioception ect even on a very young child. I am really wanting to look into alternate therapies for us like Interactive Metronome, OT alone is not really cutting it...I'm supposed to have a phone conference this afternoon with her OT because she is not seeing the progress she had hoped to see with SI therapy for my DD either.