I was diagnosed by an occupational therapist twice. This included me filling out forms of what my answers to different sensory questions were, talking to an occupational therapist, and there was a physically looking at me part scheduled; but we'd ran over and I was such an obvious case that we didn't bother scheduling another one to do that. The only looking at time they got was while discussing my symptoms with me, and both of them noted symptoms in that period of time. (So, they are watching then too)

For example; one of the OTs went and tried turning off the florescent lights while we were talking and I immediately became more verbal.

One of the OTs also in that also categorizes people into hyper/hypo/seeking. You can be in multiple categories. She didn't go into the movement disorders as part of SPD or senosory discrimination disorders though.