She may be feeling sick.
They often pant if they feel sick, even if they don't actually throw up. Giving her water will actually make her more likely to throw up.
It helps to take them on lots of short rides, even just five minutes, on a regular basis to get them used, especially if you're plnning on taking a long journey with them.
Some dogs travel better if they can't see out of the window, getting less upset if they can't see the world flashing past. |