I was swimming today with my family, and I went to dive off the diving board, and for some reason when I dove, my legs bent so far that my family said they didn't even know that was possible. My spine bent backwards as well and when I came up from under the water I felt like I couldn't move, the pain was so bad. My legs also started shaking uncontrollably. I am still in pain, but I don't think I need to go to the ER. Does anyone have any suggestions for what to do for this pain? I am hoping it goes away within a few days, it is horrible. I feel like I can't bend my back at all.