I'm so sorry to hear you weren't feeling well. Hope you feel well soon!

As for the smell, baking soda works wonders! Pour baking soda all over the smelly area (put a lot) and leave it there for a few days until the smell is gone. The vacuum the baking soda and spray some air freshener! Your car should be smelling like new in no time! That's what my mom used to do whenever we went on long road trips when I was little. I would get VERY nauseated on curvy roads and would throw up. I practically made everyone get out of the car on our way to Yosemite once when I was 5 because after throwing up the whole way, the car STUNK! My mom had baking soda with her, and put it all over the car. The smell had lessened to "bearable" within half an hour, so we could get in the car again. I hate getting nauseated expecially in planes, because you feel so helpless when in the plane, in a very uncomfy seat, surrounded by people on both sides, and get sick. I make sure I eat a nausea prevention tablet before flying or going on long road trips now. It really helps and keeps me from getting sick, and best of all, let's me enjoy the trip.