When I was young (6+) I began having these very strange episodes or attacks that affected a lot of my senses. It would start in my head, and my mind would get a very crowded or overwhelming feeling. A lot of motion would go on in my mind. Almost like a crowd moving, with tons of different people going tons of different ways. It'd also have a dizzy feeling to it, like the movement tilting. And whispers or murmurs, but it was somehow linked to the movement; like it was the sound of the movement. There was no real pattern of when I would have one of these episodes, but it went on for a year or two and then abruptly stopped.
Until I was about 12 years old, and it started up all over again. Except, this time, I suffered even more symptoms. Along with the overwhelming crowded motion in my head, I became extremely oversensitive to both hearing and touching. Any pressure on my body would feel like it was crushing me; I couldn't even hold my pencil and felt extremely uncomfortable sitting at a desk. And any noise around me would be terrible, driving like nails into my head to the point that I would have to cover my ears. It lasted for about a year before it disappeared again.
But just recently, and I'm now 22 years old, I've noticed that I've had a few episodes where it comes back. It's only happened twice now, and it is nothing more than a slight irritation in my head. It's no longer overwhelming, and I no longer suffer the extreme sensitivity to touch and hearing, but it's still apparent and making me wonder what it is.