Hi mark,

Thanks for your good information.

I am a 19 years old pre-med student. I had a concussion 2 month ago when someone punched me in the face and I was unconscious for 3 to 4 seconds. I didn't have headaches but I had a slight ringing in the ear and fasciculations ( I still have fasciculations after a period of interruption). I had had hit my head a lot before but I did not know what a concussion was. I used to go snowboarding and skateboarding and every time I would fall a few times.
I also had a fracture when I was 10 but I think It wasn't serious.

Thanks a lot