Replying to Blacking out

so today i was trying a 5 on a 20 foot table and on my second attempt i underrotated, caught an edge and kinda landed with my head hitting the landing. i couldnt really see for a second. or i coul;d see but it just looked kind of like a static tv looked like. lie all the crackling and little color dots. so it went like that and then back to normal and back to the tv thing again and then back to normal again. then someone handed me my ski and i felt fine but like things i wasent looking at (like out of the corner of my eye) were kind of like fading in and out liek the bright colors... did i get a concussion or something?