I am a 23-year-old woman and I had a mild concussion when I was seven years old. Will it cause a decline in intelligence? I did some examination and they revealed nothing abnormal. I stayed unconscious for a few seconds and so I went to the hospital. The doctor told me that I am totally fine. But sometimes, I have a little slow. I know that a mild concussion will always heal with time but I need reassurance. When I had a mild concussion, I went to the pediatrician. The doctor told me that everything was perfect. Please suggest.