I skied all weekend and feel twice on some backflips, both times digging my tips in and sort of hitting my head, it wasn't off a big kicker, just these tiny little ones in our jib park. The first time I fell, it hurt my head a little, and every backflip after that made me feel an intense pressure in my head, not too different from a headache, but all over. If I didn't do backflips or bounce around too much, it stopped hurting. I went back to the hotel that night and hung around, not thinking anything of it. When I laid down, it started to hurt again, but I went to sleep and got up to ski the next day. Sure as can be, the next couple of times I did backflips and landed them, it hurt my head. If I was doing just spins, no problem. Then I ate it again and hurt my head, again. Went to sleep, blah blah, and now today, I'm just sitting here afterbangning some homework and when I bent down to get my books, it hurt a ridiculous amount and I though I might just pass out from the pain. What should I do? Has this happened to anyone before? Sorry for the wall of text.