I had a concussion yesterday and I am scared. Am i going to be okay?

I had a minor concussion yesterday after falling off of my longboard and hitting the back of my head on the pavement. I went to the hospital, but the doctor didn't seem concerned because I had no amnesia and did not feel nauseous. Today, I am not in pain, but my vision is still a bit odd and I feel a mild throbbing sensation on the back of my head. I can't stop worrying and I just want to be back to normal again...Can anybody shed some light on my situation? Is this normal? Will I be okay?