A serious question...

Wiz, I feel your pain. I found out while doing my first studio internship. I woke up in the middle of the night feeling like I was falling through the floor. I rushed to the door and vomited. My balanced was all screwed up, I fell twice trying to get to the sink to rinse out my mouth. For the next 3 days I was racked with the worst headache ever. I went back into the studio and the second we played the track we were working on I felt nausea again. This was the beginning of a now 16 year ordeal. It has struck me at different times, usually corresponding with loud audio stimulation. I finally got a slew of testes done when the headache lasted for over a week and I was left mentally wrecked. All the tests came back inconclusive, so I have learned to live with it, turning down the music when I feel the warning signs. They include the muscles in the back of my neck clamping up and a slight floating/falling sensation. I must say though, it has gotten much better and I have a hard time remembering the last time it happened.

I have made a direct correlation, like you, between heavy compression and the onset of the symptoms. I also think it has components of phase and distortion issues.

I hope you can figure out what your triggers are.