hi, so yesterday, i was skateboarding and i fell on my butt (mainly) and on my head. It didn t seem very painful and it didn t seem like a hard fall on the head. But seconds after, my vision started to get blurry. My family told me to sit down and to rest. So i did and they gave me water and food. About five minutes after, my vision returned to normal and i felt normal as well. I went back doing my daily normal routine and nothing happened to my vision or my head. It s been at least a day, should i be worried at all?