Throwing up

I was wondering if anyone suffers from motion sickness when in the car? My husband Carlos throws up on the way to therapy sometimes. I believe it is because he is being transported in a van, which can be quite bouncy. It comes on rather suddenly. Anyone else? Any theories?

After my craniotomy, I was very nauseous for about 2 months during car rides. I have no idea why. I was also a little nauseousjust from the headaches, even when I wasnt in the car…sorry no theories why this occurs