Sometime when I'm sitting at the computer I feel like I'm typing on the spines of a giant sea urchin, each individual spine is a different letter. It's like each key becomes several feet long and the whole thing rolls up, displaying its array of key-spines. This is weird enough that sometimes it makes typing totally impossible.
Other times I feel as if I'm watching objects from odd perspectives. I'll look at a bottle and it appears normal, but eventually my view shifts so that I feel like I'm looking up at it from wayyy down below.
I occasionally have distorted sense of size too. I'll pick up a large book, but it feels sooo thin and tiny..as if it were the size of a paperclip. Other times I get the opposite sensation and my hand feels as if each finger were a small needle grasping at the covers of the book. I can see that the sizes are normal, but they feel like the wrong size.