Hello sir, i am an 18 year old boy. I got punched by a boy yesterday in the left side of my head, just above the ear. There's a swelling now. Though i was fine yesterday, today, when i got up in the morning from bed, my head swayed and the visions were spinning for around 5 seconds. It happens when i get up suddenly from bed or lie down suddenly. Can you please specify, what is happening to me.