I've been playing rugby for 12 years, but I only got one concussion, when my teammate clipped my jaw during a passing drill, spinning my head around. Instant ve

I've been playing rugby for 12 years, but I only got one concussion, when my teammate clipped my jaw during a passing drill, spinning my head around. Instant vertigo, fell down, and knew right away it was a concussion. I felt euphoric. It was wonderful. For the next 5 weeks, whenever I started warming up for practice (playing touch rugby), I'd get splitting headaches and have to stop. But after 5 weeks there were no headaches, so I resumed practice. The other two concussions I had were from hide-and-seek when I was ten, a head-on collision in a pitch-black room (I saw stars), and another when I was skiing off trail when I was 23 and knocked my head against a tree (I saw double for 30 seconds).