Have you ever laughed so hard u blacked out?!

I was in my science class and we were all standing around waiting to be let out of class and we were talking!. My guy friend made me laugh so hard i started crying and I fell on the floor, hitting my head slightly on one of the desks!. Then I blacked out for a few seconds!.

But when I came back into conciousness, i was still laughing histerically!.

What happened do you think!? has this ever happened to you!?!?Www@Answer-Health@Com

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