What happened?!?!

As I sit in my room thinking about what had happened on Friday, everything was a blur. Everyone was telling me that I was knocked out by a basketball because Amy, my best friend, was mad at me, so she decided to throw it at me. None of the teachers knew about to suspend her, but I wondered how I could be mad at her if I don't remember anything. AT ALL! People were also telling me about how then once I got up after I was knocked out that I was bleeding from my head. As I sat in my room thinking about what really did happen, my brain just shuts down. Nothing. Whatsoever. I don't understand why I can't remember and why I can't believe anyone because no one is telling me the truth.