I fainted and hurt myself pretty bad?

So long story short: I got up from my bed got dizzy and woke up on the floor with the back of my head bleeding a bit. And according to my little sister, I fell out of no where and hit my head on the corner of a table. And I was on the floor unconscious for about 1 min.

Should I go to the doctor? (Although my parents were about to call 911 but they ended up treating me themselves)
I fainted and hurt myself pretty bad?
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