Yes, I think it is a component of SPD and is exactly what you said, they hold it together as long as they can and then you get the brunt of it at home because she's got to let it go somewhere and you are her safe person who loves her. So sorry you and your DD are dealing with this. Yes there is OT, and sensory things at home like swings and weighted blankets and joint compression, and some people get help with meds, and some people get help with special diets and/or biomedical treatment (supplements and such) and then there's also things like homeopathics and cranial sacral therapy/chiropractic care that can complement those other therapies very well too. It's kind of like putting pieces of a puzzle together though, you'll likely have to try some different things and keep trying. I've not known too many people with SPD to be helped by one certain thing alone, it's usually a process of trying and finding different things that help with different areas.