The immediate symptoms were be a loss of function in any of the areas effected by a concussion.

Awareness of your surroundings
Vision, focus and convergence (cross eyed)
Balance
Motor control

and/or nausea
strange taste

These symptoms may last a second or two

Why even be concerned ?

Can you change what happened?

Can you or will you do anything different?

Do you believe you can treat a bump or jolt?