I've had 3 for sure concussions. 1st was in 5th grade. Diving for a volleyball in PE and didn't realize I was as close to a wall as I was. About an hour after I hit the wall, everything looked like I was looking through a broken window. Really messed up feeling. 2nd was a baseball injury, knee to the side of the head. I was knocked out for a solid minute or two. I was playing CF, ran towards 2nd baseman to make diving catch. RF didn't hear me calling for it, plowed me over. I woke up on my back looking at the CF fence. 3rd was a college accident. Fell out of bed that was lofted, cracked my head on my desk below. I worry that I will have long term issues from them, or if Im just forgetful all the sudden at the ripe old age of 34.