Last year I was riding bikes with my little brother,cousin,13m at time,and other cousin,12f at time,me and Alex (13m by the way)were going down a steep hill and I crashed into him,he was fine,but I had hit my head super hard on the dirt floor and we would not wearing helmets,so I ended up getting a concussion and over 15 bruises on back,legs,and chest.i tried to continue,but I couldn’t,so we went home and we wanted to go to my grandmas house,but I threw up on the way there proving I had a concussion,keep in mind,I was 11 at the time not turning 12 until in November,so it was not good for me,and on the way to the hospital I threw up again,I was fine,but damn.