Right now my son's only official diagnosis is Autism disorder.
He LOVES weight on/around him. Is that an autism thing or a sensory thing? How is SPD diagnosed?
I think it falls under sensory. My son is ASD as well, and he loves brushing and joint compressions/deep pressure. I *think* you might have to see an occupational therapist for that diagnosis [our OT deals with my son's sensory issues], but if you work with any kind of therapist already (speech, physical, behavioral) then you could ask them and they could definitely set you on the right path.