What's going on? So yesturday I was racing a my 5th harescramble and for the 2nd time I got very sick while racing due to fumes. Mostly the 2 stroke fumes. I felt good for the first half hour or so but then I started feeling naucious. First lap was pretty bad, threw up once and started getting a very bad headache. Decided to push and do more though. 2nd lap my headache got much worse and 3/4 through I was on my knees throwing up. This only seems to happen in tougher races not so much the more open ones with less traffic. Anyone else have this problem? Anyway to prevent it? Thanks guys!