Backed the car into the side of the house (brick wall)
 

I'm currently living with family and have to park in the very tight and narrow driveway. So I always end up having to do at least a 3-point turn in order to get out. Today I was off in my depth perception and ended up backing into the side wall of the house, which is made of brick.

I'm not sure the speed I backed into the wall. It was a predictably loud thump that really caught me off guard and rocked me a bit. I can't recall if I yet had my seat belt on since I was only in the car for a few seconds at that point. I don't recall hitting my head on anything. There is also predictably damage to the rear bumper of the car (it's a 2 door Honda Accord).

Is this event likely to cause a concussion or even a decent possibility? I have no idea the forces or science behind it. The car weighs around 3200 - 3500 lbs and I was traveling maybe 10mph or less. Main symptom now is a headache.

Yeah right. Think about it.

The weight of the car means NOTHING. You were not driving 10 mph in a driveway.