Jomar,

I am certain that, at least for the first injury, what I received was a concussion. I landed right on my forehead full-impact, without anything stopping me beforehand. I felt a wave sort of pass over my brain, so I have few doubts that the collision with the floor did not give me some sort of head-related injury.

Do you need to whip your head back and forth to receive whiplash?

How might whiplash differ from a concussion?

I understand that the symptoms of concussions and whiplash injuries are similar. How could one tell the difference, especially since I only really began feeling pain in my neck after the fourth instance?