I've been hypnotized?

I got hypnotized tonight at the fair and I have a few questions about it. I really don't remember anything about it, aside from volunteering and then waking up. My friends say I did a lot of funny stuff but I have no idea. Also when I woke up I felt really groggy and loopy. I still feel kind of out of it, is that normal? I've never gone under hypnosis before and I am just worrying. Is this psychsomatic, or are these genuine hypnosis side effects. So yeah...let me know. Thanks!