today i just got a new landscape rake for the JD 2210 and i was using it smoothing out some land. I have a curtis cab, hard sided. I had both the doors shut and i started to get a little headache and didn't think to much of it then all of a sudden it hit me big time i got a really bad headache and then i got out of the tractor sat on the lawn for a few minutes and then i "regurgitated" lunch and felt like i was gunna pass out. I'm not no doctor but i think this had to do with carbon monoxcide. And i started thinking about how under my seat i have no rubber flap covering it so i can see the ground from that and how around the pedals i can see the ground theres about an inch of space around each pedal. My more specific concern was the brake pedal since that is on the same side as the exhaust. I think that the fumes are comming up through the pedals (brake pedal) and then getting trapped into the cab since i did smell a little something but i fuigered it was just cause i had a little diesel fuel on my hands from filling it up. When i drive it i do get a little minor headache but this is the first time this has happened this bad. But this is also the first time i've drven it in 60 degree weather or above so could this have anything to do with it? has this happened to anyone else? What can i do about it?