What should I do or say to people who mention it?

ok I was at my friend's house w/ a few other guys and one of my friends went back to his house so he could try and get some alcohol. He came back with a whole carton of cranberry juice (one of the big jugs). I haven't gotten drunk before, but i wasn't sure if it was spiked so I drank the whole thing. They told me it was, and sooner or later I started acting a little funny because I thought I was getting drunk. They were messing with me and saying i was yelling when I was really fine and just whispering and they told me to walk in a straight line and I did it fine. Then we went inside and I threw up in the toilet from chugging the cranberry juice too fast, but obviously i thought I was drunk. I was honestly freaked out over the course of the night when this was happening because I was almost like mentally forcing myself to act differently because I though I had consumed alcohol. My friends said all this stuff that they said I was doing, even though I wasn't, and I had never gotten drunk b4 so I wasn't sure if they were making it up or not. Now at school some kids are kind of making fun of me about it, and I feel like I got tooled on, but they still will actually drink w/ me in the summer, and now other kids want to actually drink w/ me too from my baseball team. I'm just not sure how to take this because that night I was kind of distressed a little because I actually thought I was drunk.