I used to have a GSD/Akita mix that
got terribly car sick. I remember bringing
her home from the shelter at 6 weeks of age and I was soaking wet from her drool.
She never grew out of it, and I would have
to give her a dramamine for trips longer
than 45 minutes. IT was so bad, that
when I got my Rocky, I requested the
breeder make sure I get a pup that
does not get car sick.
Bella does not sound nearly as bad as
my dog was, and my vet told me that most
pups grow out of it.
(IF no medical reasons are causing Bella's neasea)
If I may suggest, taking Bella on short
fun 5-10 minute trips daily. Driving to the park, or other fun stuff. Slowly/eventually expanding the trip a bit longer and longer.