...vomitting..what happened? While running, I suddenly starting having intense cramps in my lower stomach,so much so that I had to sit down. My legs then became extremely numb I could hardly walk. When I tried to stand up, my vision was blurry and spotty and stayed that way for about 10 minutes. I began vomitting and had to almost drag myslef home. Once I was home the cramping continued for about 15 minutes, aand then I was fine. I am an athlete and I run everyday, so this wasn;t about being out of shape. Any ideas? I'm kind of worried. Also, I'm 17 years old