Things I used to like -
Generic pop music.
I still like pop, but it used to literally be all I ever listened to. Now I prefer punk rock and stuff like that.
Adam Sandler
I used to like his newer movies... *shudders* I still like his old stuff though.
Things I used to dislike -
Blood
It used to make me really squeamish. I don't like it now, but it doesn't bother me as much.
Any food I hadn't tasted before
When I was younger, I assumed that I hated any food I hadn't already eaten before. I don't know why. I just did.
Anime
I hated it. I don't even know why. The only anime I didn't refuse to watch was pokemon. I love anime now, though.
Concerts and performances
This one I actually understand. I have mild Asperger's syndrome, and when I was little my symptoms were way more severe. So I couldn't handle all the people and the noise. xP