I use to experience this "syndrome" when I was young. It usually accompanied growing pains.

The spacial distortion was very strange, and if I closed my eyes It seemed like I was an enormous being in a very small world. I wouldn't really liken it to hallucinations, as it's not you're eyes which report the trickery.

Yup

I had some Guinness in Rhodesia once that cam to us vis South Africa by boat and I experienced EXACTLY the same effect

( : ( : peter