There are many different symptoms that can develop after a concussion. The concussion may or may not be the cause of the tingling. Remember, your head was just the part that suffered the concussion. The rest of your body also underwent some trauma.

There are a myriad of injuries that can cause inflammation in the spine or other nerve junctions that can cause tingling. An injury in the upper cervical vertebra can cause inflammation to the brain stem area thus causing a myriad of symptoms.

If this tingling is chronic, you should have it checked out thoroughly. There are a variety of neurological tests that can determine if it is due to you concussion.

I am confused. How do you know you hit your head on the tile floor 4 times if you were passed out? Do you have any idea why you passed out? Did somebody witness you passing out?

It is not uncommon for someone to suffer a concussion, get knocked out, and not remember why or how they hit the floor. The amnesia of the moments just before the concussion is not uncommon.