did u happen to go through anything painful earlier that day?
cause one time i hurt my ankle playing football then later that night limped to a friends room and hit the grav bong pretty hard. A little later i felt dizzy and cold and i saw like the rainbow spectrum reflecting off things (like when someone is running the hose in summer).

yeah it was kinda scary so i just laid in my bed and watched TV until it went away. But i think it had to do with the pain in my ankle somehow cause it REALLY hurt and walking to his room was the first time I had to use it since I did it.