I guess I don't have any true HI. My WILDs are highly unstable, so maybe my actual "WILDs" are only a very strong case of HI but I doubt it. Usually I hear, see, and feel nothing until my wall forms in front of me and I'm in a dream.

When I'm falling asleep unconsciously I get something where I know I'm in bed, yet I'm in a different place at the same time... then I blip out of consciousness and try to move in this new place, and end up moving my real life body and becoming conscious once more. That may also be a form of HI.