How common are deaths from overheating? I've rolled like 10 times and never felt particularly hot until the most recent time when I rolled at a music festival. I had chills & felt very cold and clammy all night while we were outside watching the music. I also felt very tight in the chest and kept feeling the need to take deep breaths. Then when I started to come down we walked back to the campsite which was on top of a very steep mountain. When we arrived at the campsite I started feeling EXTREMELY hot and feverish (probably triggered by the physical exertion required to walk up the mountain). I was convinced I was overheating and was going to die, or that my heart was going to stop or something. I dumped cold water on my head and eventually managed to go to sleep. The overheating thing was very frightening for me and I am just wondering how common this is and how dangerous it is? I was drinking lots of water (probably too much) and it didn't seem to help much. Also how common are the other side effects such as chills, chest tightness, etc?