I never been epileptic or struggled with things like strobe lighting. Like most of us post injury bright lights do bother me and some high intensity images (like the big bang intro) can cause me minor discomfort

However, since my accident one of the other things I have noticed is that watching a video or an animation of a tunnel sends something in my brain into overload.

In an attempt to understand this I found a simple sample video on Youtube and waited until I was having an OK day.

Today I tested it out by watching a few seconds of this relatively simple animation. I had to stop virtual immediately as the sensation inside the top of my head was extraordinary painful and disturbing. This was 30 mins ago and my head is still throbbing and feel sick. If I hadn't stopped watching it I am not sure what would have happened but I was too concerned to continue.

I would be interested to know what others think. But please only watch this if you think you are up to it.

http://www.youtube.com/watch?v=saN33G9NcWw