I'm pretty active, try to get out on my mountain bike 2-3 times a week. Once in a while I get sick while riding. I get really hot, dry heave or vomit, start
sweatingSweating
Sweating - absent heavily then feel fine after i vomit. I am curious as to what could cause this. I'm 32 and can remember this back into my late teens. It doesn't happen every time though. My doctor had mentioned something about an adreniline rush and my symtons being similar to passing out.