So three weeks ago tomorrow I got a concussion when I collided with a car on a skateboard. My symptoms seemed to resolve about 4 days ago. Today I surfed again for the first time and sure enough I hit my head in sort of the same place as a few weeks ago. It wasn't too bad of hit, but hard enough to leave a small bump and leave a small abrasion.

I only have a slight headache now and only slight pain where my board hit. No other symptoms seem to be present. Do you think I will be okay or could I have re aggravated my concussion?