Just joined to say I get the same feeling and have done since I was a child. The descriptions from others, of what is a really difficult thing to explain, are pretty much exactly lime my own. The knowing it was going to happen before hand, the increased intensity of background noise and movement and the time distortion are exact matches to me.

Had one again today for the first time in years While I was at work. Went to the bathroom for 5 to 10 minutes and it just passed. I am 34 now.

They never really bothered me, just felt they were a really odd sensation and experience.

I really would love to know what they are.
The theories in this thread range from
- form of epilepsy
- panic attack
- inner ear problems
- eye problems
- suppressed childhood memories or abuse
- stress related

How are we going to find out what it is?