[...Yes, that is definitely not a good sign. Her nausea must be very prevalent, indeed, if she can't even manage to finish her sentence. Connor frowns a little, then crouches down; though Konoha's size is not insubstantial even lying down, there's no point in disorienting her further by making her tilt her head up at him.]

You're likely suffering from motion sickness. I would suggest that you move to the front of the car and face the way that we're moving. From there, close your eyes, keep your head still, and inhale and exhale deeply.

If you'd like to try, I can assist you in moving.